Implement the Blink part of the Device Motion API.

Source/Platform/chromium/public/WebDeviceMotionListener.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
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  * modification, are permitted provided that the following conditions are
  * met:
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  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 10 matching lines @@
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  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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-#ifndef WebMediaSource_h
-#define WebMediaSource_h
-
-#include "../../../Platform/chromium/public/WebURL.h"
-#include "WebTimeRange.h"
+#ifndef WebDeviceMotionListener_h
+#define WebDeviceMotionListener_h
 
 namespace WebKit {
 
-class WebMediaSourceClient;
+class WebDeviceMotionData;
 
-class WebMediaSource {
+// Abstract interface for the Device Motion API listener.
+class WebDeviceMotionListener {
 public:
-    virtual ~WebMediaSource() { };
-    virtual void open(WebMediaSourceClient*) = 0;
+    // This method is called every time new motion data is available.
+    virtual void didChangeDeviceMotion(WebDeviceMotionData&) = 0;

[abarth-chromium, 2013/05/07 16:43:47]

Why not a const reference?

[timvolodine, 2013/05/07 19:02:30]

Done.

 };
 
 } // namespace WebKit
 
-#endif
+#endif // WebDeviceMotionListener_h