Implement the Blink part of the Device Motion API.

Source/Platform/chromium/public/WebDeviceMotionProvider.h

Index: Source/Platform/chromium/public/WebDeviceMotionProvider.h
diff --git a/Source/WebKit/chromium/public/WebMediaSource.h b/Source/Platform/chromium/public/WebDeviceMotionProvider.h
similarity index 85%
copy from Source/WebKit/chromium/public/WebMediaSource.h
copy to Source/Platform/chromium/public/WebDeviceMotionProvider.h
index ae7864b3090d45d155dce3a55872d6f6a27830c4..1cba2e987ad593d93e285d07e2b85b61ee809931 100644
--- a/Source/WebKit/chromium/public/WebMediaSource.h
+++ b/Source/Platform/chromium/public/WebDeviceMotionProvider.h
@@ -28,22 +28,18 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WebMediaSource_h
-#define WebMediaSource_h
-
-#include "../../../Platform/chromium/public/WebURL.h"
-#include "WebTimeRange.h"
+#ifndef WebDeviceMotionProvider_h
+#define WebDeviceMotionProvider_h
 
 namespace WebKit {
 
-class WebMediaSourceClient;
+class WebDeviceMotionListener;
 
-class WebMediaSource {
+class WebDeviceMotionProvider {
 public:
-    virtual ~WebMediaSource() { };
-    virtual void open(WebMediaSourceClient*) = 0;
+    virtual void setListener(WebDeviceMotionListener*) = 0;
 };
 
 } // namespace WebKit
 
-#endif
+#endif // WebDeviceMotionProvider_h