| // 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 motion. |
| // Multiply-included message file, hence no include guard. |
| |
| #include "base/memory/shared_memory.h" |
| #include "ipc/ipc_message_macros.h" |
| #include "ipc/ipc_param_traits.h" |
| #include "ipc/ipc_platform_file.h" |
| |
| #define IPC_MESSAGE_START DeviceMotionMsgStart |
| |
| // Asks the browser process to activate Device Motion sensors if necessary. |
| IPC_MESSAGE_CONTROL0(DeviceMotionHostMsg_StartPolling) |
| |
| // The browser process asynchronously returns the shared memory handle that will |
| // hold the data from the hardware sensors. |
| // See device_motion_hardware_buffer.h for a description of how |
| // synchronization is handled. |
| IPC_MESSAGE_CONTROL1(DeviceMotionMsg_DidStartPolling, |
| base::SharedMemoryHandle /* handle */) |
| |
| // Notifies the browser process that the renderer process is not using the |
| // Device Motion data anymore. The number of Starts should match the number |
| // of Stops. |
| IPC_MESSAGE_CONTROL0(DeviceMotionHostMsg_StopPolling) |
