blob: 85c97722c0d1cc2a2b4b3ac48ff4c45b6f4c811c [file] [log] [blame]
// Copyright 2013 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.
#include <memory>
#include "cc/cc_export.h"
namespace base {
namespace trace_event {
class ConvertableToTraceFormat;
namespace cc {
class Layer;
class CC_EXPORT LayerClient {
// Returns a pointer to a debug info object, if one has been computed.
// If not, returns nullptr.
// If the returned pointer is non-nullptr, the caller takes
// ownership of the pointer.
// A pointer to the layer is provided for the convenience of layer clients
// which service multiple layers.
virtual std::unique_ptr<base::trace_event::ConvertableToTraceFormat>
TakeDebugInfo(Layer* layer) = 0;
virtual void didUpdateMainThreadScrollingReasons() = 0;
virtual void didChangeScrollbarsHidden(bool) = 0;
virtual ~LayerClient() {}
} // namespace cc