Debug/gen/services/ui/public/interfaces/window_tree.mojom-shared.cc

// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable:4065)
#endif

#include "services/ui/public/interfaces/window_tree.mojom-shared.h"

#include <utility>

#include "base/logging.h"
#include "mojo/public/cpp/bindings/lib/validate_params.h"
#include "mojo/public/cpp/bindings/lib/validation_context.h"
#include "mojo/public/cpp/bindings/lib/validation_errors.h"
#include "mojo/public/cpp/bindings/lib/validation_util.h"
namespace ui {
namespace mojom {

namespace internal {


// static
bool WindowTree_NewWindow_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_NewWindow_Params_Data* object = static_cast<const WindowTree_NewWindow_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  const mojo::internal::ContainerValidateParams properties_validate_params(
      new mojo::internal::ContainerValidateParams(0, false, new mojo::internal::ContainerValidateParams(0, false, nullptr)), new mojo::internal::ContainerValidateParams(0, false, new mojo::internal::ContainerValidateParams(0, false, nullptr)));
  if (!mojo::internal::ValidateContainer(object->properties, validation_context,
                                         &properties_validate_params)) {
    return false;
  }

  return true;
}



// static
bool WindowTree_NewTopLevelWindow_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_NewTopLevelWindow_Params_Data* object = static_cast<const WindowTree_NewTopLevelWindow_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->properties, "null properties field in WindowTree_NewTopLevelWindow_Params",
          validation_context)) {
    return false;
  }
  const mojo::internal::ContainerValidateParams properties_validate_params(
      new mojo::internal::ContainerValidateParams(0, false, new mojo::internal::ContainerValidateParams(0, false, nullptr)), new mojo::internal::ContainerValidateParams(0, false, new mojo::internal::ContainerValidateParams(0, false, nullptr)));
  if (!mojo::internal::ValidateContainer(object->properties, validation_context,
                                         &properties_validate_params)) {
    return false;
  }

  return true;
}



// static
bool WindowTree_DeleteWindow_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_DeleteWindow_Params_Data* object = static_cast<const WindowTree_DeleteWindow_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_SetCapture_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetCapture_Params_Data* object = static_cast<const WindowTree_SetCapture_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_ReleaseCapture_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_ReleaseCapture_Params_Data* object = static_cast<const WindowTree_ReleaseCapture_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_StartPointerWatcher_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_StartPointerWatcher_Params_Data* object = static_cast<const WindowTree_StartPointerWatcher_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_StopPointerWatcher_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_StopPointerWatcher_Params_Data* object = static_cast<const WindowTree_StopPointerWatcher_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 8 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_SetWindowBounds_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetWindowBounds_Params_Data* object = static_cast<const WindowTree_SetWindowBounds_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 32 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->bounds, "null bounds field in WindowTree_SetWindowBounds_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->bounds, validation_context))
    return false;

  if (!mojo::internal::ValidateStruct(object->local_surface_id, validation_context))
    return false;

  return true;
}



// static
bool WindowTree_SetClientArea_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetClientArea_Params_Data* object = static_cast<const WindowTree_SetClientArea_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 32 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->insets, "null insets field in WindowTree_SetClientArea_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->insets, validation_context))
    return false;

  const mojo::internal::ContainerValidateParams additional_client_areas_validate_params(
      0, false, nullptr);
  if (!mojo::internal::ValidateContainer(object->additional_client_areas, validation_context,
                                         &additional_client_areas_validate_params)) {
    return false;
  }

  return true;
}



// static
bool WindowTree_SetHitTestMask_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetHitTestMask_Params_Data* object = static_cast<const WindowTree_SetHitTestMask_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidateStruct(object->mask, validation_context))
    return false;

  return true;
}



// static
bool WindowTree_SetCanAcceptDrops_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetCanAcceptDrops_Params_Data* object = static_cast<const WindowTree_SetCanAcceptDrops_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_SetWindowVisibility_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetWindowVisibility_Params_Data* object = static_cast<const WindowTree_SetWindowVisibility_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_SetWindowProperty_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetWindowProperty_Params_Data* object = static_cast<const WindowTree_SetWindowProperty_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 32 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->name, "null name field in WindowTree_SetWindowProperty_Params",
          validation_context)) {
    return false;
  }
  const mojo::internal::ContainerValidateParams name_validate_params(
      0, false, nullptr);
  if (!mojo::internal::ValidateContainer(object->name, validation_context,
                                         &name_validate_params)) {
    return false;
  }

  const mojo::internal::ContainerValidateParams value_validate_params(
      0, false, nullptr);
  if (!mojo::internal::ValidateContainer(object->value, validation_context,
                                         &value_validate_params)) {
    return false;
  }

  return true;
}



// static
bool WindowTree_SetWindowOpacity_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetWindowOpacity_Params_Data* object = static_cast<const WindowTree_SetWindowOpacity_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_AttachCompositorFrameSink_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_AttachCompositorFrameSink_Params_Data* object = static_cast<const WindowTree_AttachCompositorFrameSink_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidateHandleOrInterfaceNonNullable(
          object->compositor_frame_sink,
          "invalid compositor_frame_sink field in WindowTree_AttachCompositorFrameSink_Params", validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateHandleOrInterface(object->compositor_frame_sink,
                                                 validation_context)) {
    return false;
  }

  if (!mojo::internal::ValidateHandleOrInterfaceNonNullable(
          object->client,
          "invalid client field in WindowTree_AttachCompositorFrameSink_Params", validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateHandleOrInterface(object->client,
                                                 validation_context)) {
    return false;
  }

  return true;
}



// static
bool WindowTree_AddWindow_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_AddWindow_Params_Data* object = static_cast<const WindowTree_AddWindow_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_RemoveWindowFromParent_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_RemoveWindowFromParent_Params_Data* object = static_cast<const WindowTree_RemoveWindowFromParent_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_AddTransientWindow_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_AddTransientWindow_Params_Data* object = static_cast<const WindowTree_AddTransientWindow_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_RemoveTransientWindowFromParent_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_RemoveTransientWindowFromParent_Params_Data* object = static_cast<const WindowTree_RemoveTransientWindowFromParent_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_SetModalType_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetModalType_Params_Data* object = static_cast<const WindowTree_SetModalType_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }


  if (!::ui::mojom::internal::ModalType_Data
        ::Validate(object->type, validation_context))
    return false;

  return true;
}



// static
bool WindowTree_ReorderWindow_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_ReorderWindow_Params_Data* object = static_cast<const WindowTree_ReorderWindow_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }


  if (!::ui::mojom::internal::OrderDirection_Data
        ::Validate(object->direction, validation_context))
    return false;

  return true;
}



// static
bool WindowTree_GetWindowTree_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_GetWindowTree_Params_Data* object = static_cast<const WindowTree_GetWindowTree_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_GetWindowTree_ResponseParams_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_GetWindowTree_ResponseParams_Data* object = static_cast<const WindowTree_GetWindowTree_ResponseParams_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->windows, "null windows field in WindowTree_GetWindowTree_ResponseParams",
          validation_context)) {
    return false;
  }
  const mojo::internal::ContainerValidateParams windows_validate_params(
      0, false, nullptr);
  if (!mojo::internal::ValidateContainer(object->windows, validation_context,
                                         &windows_validate_params)) {
    return false;
  }

  return true;
}



// static
bool WindowTree_Embed_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_Embed_Params_Data* object = static_cast<const WindowTree_Embed_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidateHandleOrInterfaceNonNullable(
          object->client,
          "invalid client field in WindowTree_Embed_Params", validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateHandleOrInterface(object->client,
                                                 validation_context)) {
    return false;
  }

  return true;
}



// static
bool WindowTree_Embed_ResponseParams_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_Embed_ResponseParams_Data* object = static_cast<const WindowTree_Embed_ResponseParams_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_SetFocus_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetFocus_Params_Data* object = static_cast<const WindowTree_SetFocus_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_SetCanFocus_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetCanFocus_Params_Data* object = static_cast<const WindowTree_SetCanFocus_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_SetCursor_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetCursor_Params_Data* object = static_cast<const WindowTree_SetCursor_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->cursor, "null cursor field in WindowTree_SetCursor_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->cursor, validation_context))
    return false;

  return true;
}



// static
bool WindowTree_SetWindowTextInputState_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetWindowTextInputState_Params_Data* object = static_cast<const WindowTree_SetWindowTextInputState_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->state, "null state field in WindowTree_SetWindowTextInputState_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->state, validation_context))
    return false;

  return true;
}



// static
bool WindowTree_SetImeVisibility_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetImeVisibility_Params_Data* object = static_cast<const WindowTree_SetImeVisibility_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidateStruct(object->state, validation_context))
    return false;

  return true;
}



// static
bool WindowTree_SetEventTargetingPolicy_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_SetEventTargetingPolicy_Params_Data* object = static_cast<const WindowTree_SetEventTargetingPolicy_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }


  if (!::ui::mojom::internal::EventTargetingPolicy_Data
        ::Validate(object->policy, validation_context))
    return false;

  return true;
}



// static
bool WindowTree_OnWindowInputEventAck_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_OnWindowInputEventAck_Params_Data* object = static_cast<const WindowTree_OnWindowInputEventAck_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }


  if (!::ui::mojom::internal::EventResult_Data
        ::Validate(object->result, validation_context))
    return false;

  return true;
}



// static
bool WindowTree_DeactivateWindow_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_DeactivateWindow_Params_Data* object = static_cast<const WindowTree_DeactivateWindow_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_StackAbove_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_StackAbove_Params_Data* object = static_cast<const WindowTree_StackAbove_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_StackAtTop_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_StackAtTop_Params_Data* object = static_cast<const WindowTree_StackAtTop_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_GetWindowManagerClient_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_GetWindowManagerClient_Params_Data* object = static_cast<const WindowTree_GetWindowManagerClient_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidateHandleOrInterfaceNonNullable(
          object->internal,
          "invalid internal field in WindowTree_GetWindowManagerClient_Params", validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateHandleOrInterface(object->internal,
                                                 validation_context)) {
    return false;
  }

  return true;
}



// static
bool WindowTree_GetCursorLocationMemory_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_GetCursorLocationMemory_Params_Data* object = static_cast<const WindowTree_GetCursorLocationMemory_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 8 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_GetCursorLocationMemory_ResponseParams_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_GetCursorLocationMemory_ResponseParams_Data* object = static_cast<const WindowTree_GetCursorLocationMemory_ResponseParams_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidateHandleOrInterfaceNonNullable(
          object->cursor_buffer,
          "invalid cursor_buffer field in WindowTree_GetCursorLocationMemory_ResponseParams", validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateHandleOrInterface(object->cursor_buffer,
                                                 validation_context)) {
    return false;
  }

  return true;
}



// static
bool WindowTree_PerformWindowMove_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_PerformWindowMove_Params_Data* object = static_cast<const WindowTree_PerformWindowMove_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 32 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }


  if (!::ui::mojom::internal::MoveLoopSource_Data
        ::Validate(object->source, validation_context))
    return false;

  if (!mojo::internal::ValidatePointerNonNullable(
          object->cursor, "null cursor field in WindowTree_PerformWindowMove_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->cursor, validation_context))
    return false;

  return true;
}



// static
bool WindowTree_CancelWindowMove_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_CancelWindowMove_Params_Data* object = static_cast<const WindowTree_CancelWindowMove_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTree_PerformDragDrop_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_PerformDragDrop_Params_Data* object = static_cast<const WindowTree_PerformDragDrop_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 56 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->screen_location, "null screen_location field in WindowTree_PerformDragDrop_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->screen_location, validation_context))
    return false;

  if (!mojo::internal::ValidatePointerNonNullable(
          object->drag_data, "null drag_data field in WindowTree_PerformDragDrop_Params",
          validation_context)) {
    return false;
  }
  const mojo::internal::ContainerValidateParams drag_data_validate_params(
      new mojo::internal::ContainerValidateParams(0, false, new mojo::internal::ContainerValidateParams(0, false, nullptr)), new mojo::internal::ContainerValidateParams(0, false, new mojo::internal::ContainerValidateParams(0, false, nullptr)));
  if (!mojo::internal::ValidateContainer(object->drag_data, validation_context,
                                         &drag_data_validate_params)) {
    return false;
  }

  if (!mojo::internal::ValidateStruct(object->drag_image, validation_context))
    return false;

  if (!mojo::internal::ValidatePointerNonNullable(
          object->drag_image_offset, "null drag_image_offset field in WindowTree_PerformDragDrop_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->drag_image_offset, validation_context))
    return false;


  if (!::ui::mojom::internal::PointerKind_Data
        ::Validate(object->source, validation_context))
    return false;

  return true;
}



// static
bool WindowTree_CancelDragDrop_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTree_CancelDragDrop_Params_Data* object = static_cast<const WindowTree_CancelDragDrop_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnEmbed_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnEmbed_Params_Data* object = static_cast<const WindowTreeClient_OnEmbed_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 56 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->root, "null root field in WindowTreeClient_OnEmbed_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->root, validation_context))
    return false;

  if (!mojo::internal::ValidateHandleOrInterface(object->tree,
                                                 validation_context)) {
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->frame_sink_id, "null frame_sink_id field in WindowTreeClient_OnEmbed_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->frame_sink_id, validation_context))
    return false;

  if (!mojo::internal::ValidateStruct(object->local_surface_id, validation_context))
    return false;

  return true;
}



// static
bool WindowTreeClient_OnEmbeddedAppDisconnected_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnEmbeddedAppDisconnected_Params_Data* object = static_cast<const WindowTreeClient_OnEmbeddedAppDisconnected_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnUnembed_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnUnembed_Params_Data* object = static_cast<const WindowTreeClient_OnUnembed_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnCaptureChanged_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnCaptureChanged_Params_Data* object = static_cast<const WindowTreeClient_OnCaptureChanged_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnFrameSinkIdAllocated_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnFrameSinkIdAllocated_Params_Data* object = static_cast<const WindowTreeClient_OnFrameSinkIdAllocated_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->frame_sink_id, "null frame_sink_id field in WindowTreeClient_OnFrameSinkIdAllocated_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->frame_sink_id, validation_context))
    return false;

  return true;
}



// static
bool WindowTreeClient_OnTopLevelCreated_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnTopLevelCreated_Params_Data* object = static_cast<const WindowTreeClient_OnTopLevelCreated_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 48 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->data, "null data field in WindowTreeClient_OnTopLevelCreated_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->data, validation_context))
    return false;

  if (!mojo::internal::ValidatePointerNonNullable(
          object->frame_sink_id, "null frame_sink_id field in WindowTreeClient_OnTopLevelCreated_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->frame_sink_id, validation_context))
    return false;

  if (!mojo::internal::ValidateStruct(object->local_surface_id, validation_context))
    return false;

  return true;
}



// static
bool WindowTreeClient_OnWindowBoundsChanged_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnWindowBoundsChanged_Params_Data* object = static_cast<const WindowTreeClient_OnWindowBoundsChanged_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 40 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->old_bounds, "null old_bounds field in WindowTreeClient_OnWindowBoundsChanged_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->old_bounds, validation_context))
    return false;

  if (!mojo::internal::ValidatePointerNonNullable(
          object->new_bounds, "null new_bounds field in WindowTreeClient_OnWindowBoundsChanged_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->new_bounds, validation_context))
    return false;

  if (!mojo::internal::ValidateStruct(object->local_surface_id, validation_context))
    return false;

  return true;
}



// static
bool WindowTreeClient_OnClientAreaChanged_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnClientAreaChanged_Params_Data* object = static_cast<const WindowTreeClient_OnClientAreaChanged_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 32 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->new_client_area, "null new_client_area field in WindowTreeClient_OnClientAreaChanged_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->new_client_area, validation_context))
    return false;

  if (!mojo::internal::ValidatePointerNonNullable(
          object->new_additional_client_areas, "null new_additional_client_areas field in WindowTreeClient_OnClientAreaChanged_Params",
          validation_context)) {
    return false;
  }
  const mojo::internal::ContainerValidateParams new_additional_client_areas_validate_params(
      0, false, nullptr);
  if (!mojo::internal::ValidateContainer(object->new_additional_client_areas, validation_context,
                                         &new_additional_client_areas_validate_params)) {
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnTransientWindowAdded_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnTransientWindowAdded_Params_Data* object = static_cast<const WindowTreeClient_OnTransientWindowAdded_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnTransientWindowRemoved_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnTransientWindowRemoved_Params_Data* object = static_cast<const WindowTreeClient_OnTransientWindowRemoved_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnWindowHierarchyChanged_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnWindowHierarchyChanged_Params_Data* object = static_cast<const WindowTreeClient_OnWindowHierarchyChanged_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 32 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->windows, "null windows field in WindowTreeClient_OnWindowHierarchyChanged_Params",
          validation_context)) {
    return false;
  }
  const mojo::internal::ContainerValidateParams windows_validate_params(
      0, false, nullptr);
  if (!mojo::internal::ValidateContainer(object->windows, validation_context,
                                         &windows_validate_params)) {
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnWindowReordered_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnWindowReordered_Params_Data* object = static_cast<const WindowTreeClient_OnWindowReordered_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }


  if (!::ui::mojom::internal::OrderDirection_Data
        ::Validate(object->direction, validation_context))
    return false;

  return true;
}



// static
bool WindowTreeClient_OnWindowDeleted_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnWindowDeleted_Params_Data* object = static_cast<const WindowTreeClient_OnWindowDeleted_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnWindowVisibilityChanged_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnWindowVisibilityChanged_Params_Data* object = static_cast<const WindowTreeClient_OnWindowVisibilityChanged_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnWindowOpacityChanged_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnWindowOpacityChanged_Params_Data* object = static_cast<const WindowTreeClient_OnWindowOpacityChanged_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnWindowParentDrawnStateChanged_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnWindowParentDrawnStateChanged_Params_Data* object = static_cast<const WindowTreeClient_OnWindowParentDrawnStateChanged_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnWindowSharedPropertyChanged_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnWindowSharedPropertyChanged_Params_Data* object = static_cast<const WindowTreeClient_OnWindowSharedPropertyChanged_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 32 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->name, "null name field in WindowTreeClient_OnWindowSharedPropertyChanged_Params",
          validation_context)) {
    return false;
  }
  const mojo::internal::ContainerValidateParams name_validate_params(
      0, false, nullptr);
  if (!mojo::internal::ValidateContainer(object->name, validation_context,
                                         &name_validate_params)) {
    return false;
  }

  const mojo::internal::ContainerValidateParams new_data_validate_params(
      0, false, nullptr);
  if (!mojo::internal::ValidateContainer(object->new_data, validation_context,
                                         &new_data_validate_params)) {
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnWindowInputEvent_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnWindowInputEvent_Params_Data* object = static_cast<const WindowTreeClient_OnWindowInputEvent_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 40 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->event, "null event field in WindowTreeClient_OnWindowInputEvent_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->event, validation_context))
    return false;

  return true;
}



// static
bool WindowTreeClient_OnPointerEventObserved_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnPointerEventObserved_Params_Data* object = static_cast<const WindowTreeClient_OnPointerEventObserved_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 32 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->event, "null event field in WindowTreeClient_OnPointerEventObserved_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->event, validation_context))
    return false;

  return true;
}



// static
bool WindowTreeClient_OnWindowFocused_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnWindowFocused_Params_Data* object = static_cast<const WindowTreeClient_OnWindowFocused_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnWindowCursorChanged_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnWindowCursorChanged_Params_Data* object = static_cast<const WindowTreeClient_OnWindowCursorChanged_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->cursor, "null cursor field in WindowTreeClient_OnWindowCursorChanged_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->cursor, validation_context))
    return false;

  return true;
}



// static
bool WindowTreeClient_OnWindowSurfaceChanged_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnWindowSurfaceChanged_Params_Data* object = static_cast<const WindowTreeClient_OnWindowSurfaceChanged_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->surface_info, "null surface_info field in WindowTreeClient_OnWindowSurfaceChanged_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->surface_info, validation_context))
    return false;

  return true;
}



// static
bool WindowTreeClient_OnDragDropStart_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnDragDropStart_Params_Data* object = static_cast<const WindowTreeClient_OnDragDropStart_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->drag_data, "null drag_data field in WindowTreeClient_OnDragDropStart_Params",
          validation_context)) {
    return false;
  }
  const mojo::internal::ContainerValidateParams drag_data_validate_params(
      new mojo::internal::ContainerValidateParams(0, false, new mojo::internal::ContainerValidateParams(0, false, nullptr)), new mojo::internal::ContainerValidateParams(0, false, new mojo::internal::ContainerValidateParams(0, false, nullptr)));
  if (!mojo::internal::ValidateContainer(object->drag_data, validation_context,
                                         &drag_data_validate_params)) {
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnDragEnter_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnDragEnter_Params_Data* object = static_cast<const WindowTreeClient_OnDragEnter_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 32 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->screen_position, "null screen_position field in WindowTreeClient_OnDragEnter_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->screen_position, validation_context))
    return false;

  return true;
}



// static
bool WindowTreeClient_OnDragEnter_ResponseParams_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnDragEnter_ResponseParams_Data* object = static_cast<const WindowTreeClient_OnDragEnter_ResponseParams_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnDragOver_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnDragOver_Params_Data* object = static_cast<const WindowTreeClient_OnDragOver_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 32 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->screen_position, "null screen_position field in WindowTreeClient_OnDragOver_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->screen_position, validation_context))
    return false;

  return true;
}



// static
bool WindowTreeClient_OnDragOver_ResponseParams_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnDragOver_ResponseParams_Data* object = static_cast<const WindowTreeClient_OnDragOver_ResponseParams_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnDragLeave_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnDragLeave_Params_Data* object = static_cast<const WindowTreeClient_OnDragLeave_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnCompleteDrop_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnCompleteDrop_Params_Data* object = static_cast<const WindowTreeClient_OnCompleteDrop_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 32 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidatePointerNonNullable(
          object->screen_position, "null screen_position field in WindowTreeClient_OnCompleteDrop_Params",
          validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateStruct(object->screen_position, validation_context))
    return false;

  return true;
}



// static
bool WindowTreeClient_OnCompleteDrop_ResponseParams_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnCompleteDrop_ResponseParams_Data* object = static_cast<const WindowTreeClient_OnCompleteDrop_ResponseParams_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnPerformDragDropCompleted_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnPerformDragDropCompleted_Params_Data* object = static_cast<const WindowTreeClient_OnPerformDragDropCompleted_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnDragDropDone_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnDragDropDone_Params_Data* object = static_cast<const WindowTreeClient_OnDragDropDone_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 8 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_OnChangeCompleted_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_OnChangeCompleted_Params_Data* object = static_cast<const WindowTreeClient_OnChangeCompleted_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_RequestClose_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_RequestClose_Params_Data* object = static_cast<const WindowTreeClient_RequestClose_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  return true;
}



// static
bool WindowTreeClient_GetWindowManager_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeClient_GetWindowManager_Params_Data* object = static_cast<const WindowTreeClient_GetWindowManager_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 16 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidateHandleOrInterfaceNonNullable(
          object->internal,
          "invalid internal field in WindowTreeClient_GetWindowManager_Params", validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateHandleOrInterface(object->internal,
                                                 validation_context)) {
    return false;
  }

  return true;
}



// static
bool WindowTreeFactory_CreateWindowTree_Params_Data::Validate(
    const void* data,
    mojo::internal::ValidationContext* validation_context) {
  if (!data)
    return true;

  if (!ValidateStructHeaderAndClaimMemory(data, validation_context))
    return false;

  // NOTE: The memory backing |object| may be smaller than |sizeof(*object)| if
  // the message comes from an older version.
  const WindowTreeFactory_CreateWindowTree_Params_Data* object = static_cast<const WindowTreeFactory_CreateWindowTree_Params_Data*>(data);

  static constexpr struct {
    uint32_t version;
    uint32_t num_bytes;
  } kVersionSizes[] = {{ 0, 24 }};

  if (object->header_.version <=
          kVersionSizes[arraysize(kVersionSizes) - 1].version) {
    // Scan in reverse order to optimize for more recent versions.
    for (int i = arraysize(kVersionSizes) - 1; i >= 0; --i) {
      if (object->header_.version >= kVersionSizes[i].version) {
        if (object->header_.num_bytes == kVersionSizes[i].num_bytes)
          break;

        ReportValidationError(
            validation_context,
            mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
        return false;
      }
    }
  } else if (object->header_.num_bytes <
                 kVersionSizes[arraysize(kVersionSizes) - 1].num_bytes) {
    ReportValidationError(
        validation_context,
        mojo::internal::VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER);
    return false;
  }

  if (!mojo::internal::ValidateHandleOrInterfaceNonNullable(
          object->tree_request,
          "invalid tree_request field in WindowTreeFactory_CreateWindowTree_Params", validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateHandleOrInterface(object->tree_request,
                                                 validation_context)) {
    return false;
  }

  if (!mojo::internal::ValidateHandleOrInterfaceNonNullable(
          object->client,
          "invalid client field in WindowTreeFactory_CreateWindowTree_Params", validation_context)) {
    return false;
  }
  if (!mojo::internal::ValidateHandleOrInterface(object->client,
                                                 validation_context)) {
    return false;
  }

  return true;
}


}  // namespace internal
}  // namespace mojom
}  // namespace ui

#if defined(_MSC_VER)
#pragma warning(pop)
#endif