Implement the content/renderer and content/browser part of the Device Motion API.

content/browser/renderer_host/device_motion_browser_message_filter.h

+ // Copyright (c) 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.
+
+ #ifndef CONTENT_BROWSER_RENDERER_HOST_DEVICE_MOTION_BROWSER_MESSAGE_FILTER_H_
+ #define CONTENT_BROWSER_RENDERER_HOST_DEVICE_MOTION_BROWSER_MESSAGE_FILTER_H_
+
+ #include "base/compiler_specific.h"
+ #include "base/shared_memory.h"
+ #include "content/public/browser/browser_message_filter.h"
+
+ namespace content {
+
+ class DeviceMotionService;
+ class RenderProcessHost;
+
+ class DeviceMotionBrowserMessageFilter : public BrowserMessageFilter {
+  public:
+   DeviceMotionBrowserMessageFilter();
+
+   // BrowserMessageFilter implementation.
+   virtual bool OnMessageReceived(const IPC::Message& message,
+                                  bool* message_was_ok) OVERRIDE;
+
+  private:
+   virtual ~DeviceMotionBrowserMessageFilter();
+
+   void OnDeviceMotionStartPolling();
+   void OnDeviceMotionStopPolling();
+   void DidStartDeviceMotionPolling();
+
+   bool is_started_;
+
+   DISALLOW_COPY_AND_ASSIGN(DeviceMotionBrowserMessageFilter);
+ };
+
+ }  // namespace content
+
+ #endif  // CONTENT_BROWSER_RENDERER_HOST_DEVICE_MOTION_BROWSER_MESSAGE_FILTER_H_