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

content/renderer/renderer_webkitplatformsupport_impl.h

Index: content/renderer/renderer_webkitplatformsupport_impl.h
diff --git a/content/renderer/renderer_webkitplatformsupport_impl.h b/content/renderer/renderer_webkitplatformsupport_impl.h
index 2dfab9d5a75d708abfcea33134a6feb09aaf9e0d..0194ac980d0ab47908998a47fe08b842b4e24d1b 100644
--- a/content/renderer/renderer_webkitplatformsupport_impl.h
+++ b/content/renderer/renderer_webkitplatformsupport_impl.h
@@ -28,6 +28,7 @@ class WebGraphicsContext3DProvider;
 }
 
 namespace content {
+class DeviceMotionEventPump;
 class GamepadSharedMemoryReader;
 class RendererClipboardClient;
 class ThreadSafeSender;
@@ -125,6 +126,8 @@ class CONTENT_EXPORT RendererWebKitPlatformSupportImpl
   virtual WebKit::WebCompositorSupport* compositorSupport();
   virtual WebKit::WebString convertIDNToUnicode(
       const WebKit::WebString& host, const WebKit::WebString& languages);
+  virtual void setDeviceMotionListener(
+      WebKit::WebDeviceMotionListener* listener) OVERRIDE;
 
   // Disables the WebSandboxSupport implementation for testing.
   // Tests that do not set up a full sandbox environment should call
@@ -177,6 +180,8 @@ class CONTENT_EXPORT RendererWebKitPlatformSupportImpl
 
   scoped_ptr<GamepadSharedMemoryReader> gamepad_shared_memory_reader_;
 
+  scoped_ptr<DeviceMotionEventPump> device_motion_event_pump_;
+
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
 
   scoped_refptr<cc::ContextProvider> shared_offscreen_context_;