Rename WebAnimation to WebCompositorAnimation

public/platform/WebCompositorAnimationDelegate.h

 // Copyright 2014 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 WebCompositorAnimationDelegate_h
 #define WebCompositorAnimationDelegate_h
 
-#include "WebAnimationDelegate.h"
+#include "WebCommon.h"
+#include "WebCompositorAnimation.h"
+
+#define WEB_ANIMATION_DELEGATE_TAKES_MONOTONIC_TIME 1
+
+namespace blink {
+
+class BLINK_PLATFORM_EXPORT WebCompositorAnimationDelegate {
+public:
+    virtual ~WebCompositorAnimationDelegate() { }
+
+    virtual void notifyAnimationStarted(double monotonicTime, WebCompositorAnimation::TargetProperty) = 0;
+    virtual void notifyAnimationFinished(double monotonicTime, WebCompositorAnimation::TargetProperty) = 0;
+};
+
+} // namespace blink
 
 #endif // WebCompositorAnimationDelegate_h
-