1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// IPC messages for device light.
6// Multiply-included message file, hence no include guard.
7
8#include "base/memory/shared_memory.h"
9#include "ipc/ipc_message_macros.h"
10#include "ipc/ipc_param_traits.h"
11#include "ipc/ipc_platform_file.h"
12
13#define IPC_MESSAGE_START DeviceLightMsgStart
14
15// Asks the browser process to activate Device Light sensors if necessary.
16IPC_MESSAGE_CONTROL0(DeviceLightHostMsg_StartPolling)
17
18// The browser process asynchronously returns the shared memory handle that
19// will hold the data from the hardware sensors.
20IPC_MESSAGE_CONTROL1(DeviceLightMsg_DidStartPolling,
21                     base::SharedMemoryHandle /* handle */)
22
23// Notifies the browser process that the renderer process is not using the
24// Device Light data anymore. The number of Starts should match the number
25// of Stops.
26IPC_MESSAGE_CONTROL0(DeviceLightHostMsg_StopPolling)
27