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

webkit/renderer/compositor_bindings/web_animation_impl.h

Index: webkit/renderer/compositor_bindings/web_animation_impl.h
diff --git a/webkit/renderer/compositor_bindings/web_animation_impl.h b/webkit/renderer/compositor_bindings/web_animation_impl.h
index faedf905b3a7d0177f9b4b6a6d27ccafc699dd77..e6413cfbb6ad4f7c5011f71e8126d056eb9c6ae0 100644
--- a/webkit/renderer/compositor_bindings/web_animation_impl.h
+++ b/webkit/renderer/compositor_bindings/web_animation_impl.h
@@ -5,6 +5,7 @@
 #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"
@@ -36,9 +37,14 @@ class WebAnimationImpl : public WebKit::WebAnimation {
   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);