Implement Device Orientation using shared memory in content/renderer.

content/browser/renderer_host/device_motion_browser_message_filter.cc

Index: content/browser/renderer_host/device_motion_browser_message_filter.cc
diff --git a/content/browser/renderer_host/device_motion_browser_message_filter.cc b/content/browser/renderer_host/device_motion_browser_message_filter.cc
deleted file mode 100644
index 96eceba0a56494f2b30dd420b9131af16fd5eb03..0000000000000000000000000000000000000000
--- a/content/browser/renderer_host/device_motion_browser_message_filter.cc
+++ /dev/null
@@ -1,61 +0,0 @@
-// 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 "content/browser/renderer_host/device_motion_browser_message_filter.h"
-
-#include "content/browser/device_orientation/device_motion_service.h"
-#include "content/common/device_motion_messages.h"
-
-namespace content {
-
-DeviceMotionBrowserMessageFilter::DeviceMotionBrowserMessageFilter()
-    : is_started_(false) {
-}
-
-DeviceMotionBrowserMessageFilter::~DeviceMotionBrowserMessageFilter() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  if (is_started_)
-    DeviceMotionService::GetInstance()->RemoveConsumer();
-}
-
-bool DeviceMotionBrowserMessageFilter::OnMessageReceived(
-    const IPC::Message& message,
-    bool* message_was_ok) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(DeviceMotionBrowserMessageFilter,
-                           message,
-                           *message_was_ok)
-    IPC_MESSAGE_HANDLER(DeviceMotionHostMsg_StartPolling,
-                        OnDeviceMotionStartPolling)
-    IPC_MESSAGE_HANDLER(DeviceMotionHostMsg_StopPolling,
-                        OnDeviceMotionStopPolling)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP_EX()
-  return handled;
-}
-
-void DeviceMotionBrowserMessageFilter::OnDeviceMotionStartPolling() {
-  DCHECK(!is_started_);
-  if (is_started_)
-    return;
-  is_started_ = true;
-  DeviceMotionService::GetInstance()->AddConsumer();
-  DidStartDeviceMotionPolling();
-}
-
-void DeviceMotionBrowserMessageFilter::OnDeviceMotionStopPolling() {
-  DCHECK(is_started_);
-  if (!is_started_)
-    return;
-  is_started_ = false;
-  DeviceMotionService::GetInstance()->RemoveConsumer();
-}
-
-void DeviceMotionBrowserMessageFilter::DidStartDeviceMotionPolling() {
-  Send(new DeviceMotionMsg_DidStartPolling(
-      DeviceMotionService::GetInstance()->GetSharedMemoryHandleForProcess(
-          PeerHandle())));
-}
-
-}  // namespace content