Don't clone WebAnimation in WebLayerImpl::addAnimation().

webkit/renderer/compositor_bindings/web_animation_impl.h

 // Copyright 2012 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 WEBKIT_RENDERER_COMPOSITOR_BINDINGS_WEB_ANIMATION_IMPL_H_
 #define WEBKIT_RENDERER_COMPOSITOR_BINDINGS_WEB_ANIMATION_IMPL_H_
 
+#include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "third_party/WebKit/public/platform/WebAnimation.h"
 #include "webkit/renderer/compositor_bindings/webkit_compositor_bindings_export.h"
 
 namespace cc { class Animation; }
 
 namespace WebKit { class WebAnimationCurve; }
 
 namespace webkit {
 
@@ skipping 11 matching lines @@
   virtual TargetProperty targetProperty() const;
   virtual int iterations() const;
   virtual void setIterations(int iterations);
   virtual double startTime() const;
   virtual void setStartTime(double monotonic_time);
   virtual double timeOffset() const;
   virtual void setTimeOffset(double monotonic_time);
   virtual bool alternatesDirection() const;
   virtual void setAlternatesDirection(bool alternates);
 
-  scoped_ptr<cc::Animation> CloneToAnimation();
+  scoped_ptr<cc::Animation> PassAnimation();
 
  private:
+  cc::Animation* Animation() const {

[jamesr, 2013/09/23 18:09:31]

this doesn't seem all that useful to me - when you're in the .cc, just
dereference animation_

+    DCHECK(animation_);
+    return animation_.get();
+  }
+
   scoped_ptr<cc::Animation> animation_;
 
   DISALLOW_COPY_AND_ASSIGN(WebAnimationImpl);
 };
 
 }  // namespace webkit
 
 #endif  // WEBKIT_RENDERER_COMPOSITOR_BINDINGS_WEB_ANIMATION_IMPL_H_