| // Copyright 2014 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. |
| |
| // IPC messages for device orientation. |
| // Multiply-included message file, hence no include guard. |
| |
| #include "base/memory/shared_memory.h" |
| #include "ipc/ipc_message_macros.h" |
| |
| #define IPC_MESSAGE_START DeviceOrientationMsgStart |
| |
| // Asks the browser process to activate Device Orientation sensors if necessary. |
| IPC_MESSAGE_CONTROL0(DeviceOrientationHostMsg_StartPolling) |
| |
| // The browser process asynchronously returns the shared memory handle that will |
| // hold the data from the hardware sensors. |
| // See device_orientation_hardware_buffer.h for a description of how |
| // synchronization is handled. |
| IPC_MESSAGE_CONTROL1(DeviceOrientationMsg_DidStartPolling, |
| base::SharedMemoryHandle /* handle */) |
| |
| // Notifies the browser process that the renderer process is not using the |
| // Device Orientation data anymore. The number of Starts should match the |
| // number of Stops. |
| IPC_MESSAGE_CONTROL0(DeviceOrientationHostMsg_StopPolling) |
| |
| // Same as above except the messages relate to Absolute Device Orientation, |
| // where orientation is provided w.r.t. a predefined coordinate frame. |
| IPC_MESSAGE_CONTROL0(DeviceOrientationAbsoluteHostMsg_StartPolling) |
| IPC_MESSAGE_CONTROL1(DeviceOrientationAbsoluteMsg_DidStartPolling, |
| base::SharedMemoryHandle /* handle */) |
| IPC_MESSAGE_CONTROL0(DeviceOrientationAbsoluteHostMsg_StopPolling) |
