Implement Device Orientation using shared memory in content/renderer.

content/common/device_motion_messages.h

Index: content/common/device_motion_messages.h
diff --git a/content/common/device_motion_messages.h b/content/common/device_motion_messages.h
deleted file mode 100644
index 1469c26646b4b621f8282a20b81269ec94891b05..0000000000000000000000000000000000000000
--- a/content/common/device_motion_messages.h
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2012 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
-
-// Messages sent from the renderer to the browser.
-
-// Asks the browser process to start polling, and return a shared memory
-// handles that will hold the data from the hardware. See
-// device_motion_hardware_buffer.h for a description of how synchronization is
-// handled. The number of Starts should match the number of Stops.
-IPC_MESSAGE_CONTROL0(DeviceMotionHostMsg_StartPolling)
-IPC_MESSAGE_CONTROL1(DeviceMotionMsg_DidStartPolling,
-                     base::SharedMemoryHandle /* handle */)
-
-IPC_MESSAGE_CONTROL0(DeviceMotionHostMsg_StopPolling)
-
-// TODO(timvolodine): remove the methods below once the Device Motion
-// is implemented.
-
-IPC_STRUCT_BEGIN(DeviceMotionMsg_Updated_Params)
-  // These fields have the same meaning as in device_motion::Motion.
-  IPC_STRUCT_MEMBER(bool, can_provide_acceleration_x)
-  IPC_STRUCT_MEMBER(double, acceleration_x)
-  IPC_STRUCT_MEMBER(bool, can_provide_acceleration_y)
-  IPC_STRUCT_MEMBER(double, acceleration_y)
-  IPC_STRUCT_MEMBER(bool, can_provide_acceleration_z)
-  IPC_STRUCT_MEMBER(double, acceleration_z)
-  IPC_STRUCT_MEMBER(bool, can_provide_acceleration_including_gravity_x)
-  IPC_STRUCT_MEMBER(double, acceleration_including_gravity_x)
-  IPC_STRUCT_MEMBER(bool, can_provide_acceleration_including_gravity_y)
-  IPC_STRUCT_MEMBER(double, acceleration_including_gravity_y)
-  IPC_STRUCT_MEMBER(bool, can_provide_acceleration_including_gravity_z)
-  IPC_STRUCT_MEMBER(double, acceleration_including_gravity_z)
-  IPC_STRUCT_MEMBER(bool, can_provide_rotation_rate_alpha)
-  IPC_STRUCT_MEMBER(double, rotation_rate_alpha)
-  IPC_STRUCT_MEMBER(bool, can_provide_rotation_rate_beta)
-  IPC_STRUCT_MEMBER(double, rotation_rate_beta)
-  IPC_STRUCT_MEMBER(bool, can_provide_rotation_rate_gamma)
-  IPC_STRUCT_MEMBER(double, rotation_rate_gamma)
-  IPC_STRUCT_MEMBER(bool, can_provide_interval)
-  IPC_STRUCT_MEMBER(double, interval)
-IPC_STRUCT_END()
-
-// Messages sent from the browser to the renderer.
-
-// Notification that the device's motion has changed.
-IPC_MESSAGE_ROUTED1(DeviceMotionMsg_Updated,
-                    DeviceMotionMsg_Updated_Params)
-
-// Messages sent from the renderer to the browser.
-
-// A RenderView requests to start receiving device motion updates.
-IPC_MESSAGE_CONTROL1(DeviceMotionHostMsg_StartUpdating,
-                     int /* render_view_id */)
-
-// A RenderView requests to stop receiving device motion updates.
-IPC_MESSAGE_CONTROL1(DeviceMotionHostMsg_StopUpdating,
-                     int /* render_view_id */)