Implement the Blink part of the Device Motion API.

Tools/DumpRenderTree/chromium/TestRunner/src/MockWebDeviceMotionHandler.h

Index: Tools/DumpRenderTree/chromium/TestRunner/src/MockWebDeviceMotionHandler.h
diff --git a/Tools/DumpRenderTree/chromium/TestRunner/src/MockWebDeviceMotionHandler.h b/Tools/DumpRenderTree/chromium/TestRunner/src/MockWebDeviceMotionHandler.h
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index 0000000000000000000000000000000000000000..26e49496dd7306c5d4e8d62c585813a12992a744
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+++ b/Tools/DumpRenderTree/chromium/TestRunner/src/MockWebDeviceMotionHandler.h
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+// 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 MockWebDeviceMotionHandler_h
+#define MockWebDeviceMotionHandler_h
+
+#include "base/memory/scoped_ptr.h"
+#include "base/shared_memory.h"
+#include "base/time.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebDeviceMotionHandler.h"
+
+namespace WebKit {
+class WebDeviceMotionData;
+class WebDeviceMotionListener;
+}
+
+namespace WebTestRunner {
+
+class DeviceMotionSharedMemoryReader;
+
+class MockWebDeviceMotionHandler : public WebKit::WebDeviceMotionHandler {
+public:
+    MockWebDeviceMotionHandler() { }
+    virtual ~MockWebDeviceMotionHandler() { }
+
+    // Sets the listener to receive updates for device motion data at
+    // regular intervals.
+    virtual void startListeningToDeviceMotion(WebKit::WebDeviceMotionListener*) OVERRIDE;
+
+    // Removes the current listener after which it will not receive any updates.
+    virtual void stopListeningToDeviceMotion() OVERRIDE;
+
+    void fireEvent(WebKit::WebDeviceMotionData&);
+
+private:
+    WebKit::WebDeviceMotionListener* m_listener;
+
+};
+
+} // namespace WebTestRunner
+
+#endif // MockWebDeviceMotionHandler_h