[cc] Remove all WTF #includes from CCLayerTreeHost

cc/CCSingleThreadProxy.h

Index: cc/CCSingleThreadProxy.h
diff --git a/cc/CCSingleThreadProxy.h b/cc/CCSingleThreadProxy.h
index ce7c0b4894357ef8073b2105770bc054e4fc7131..979dbb3907f529f510878397c38a9725c2249d4b 100644
--- a/cc/CCSingleThreadProxy.h
+++ b/cc/CCSingleThreadProxy.h
@@ -10,7 +10,6 @@
 #include "CCProxy.h"
 #include <base/time.h>
 #include <limits>
-#include <wtf/OwnPtr.h>
 
 namespace cc {
 
@@ -18,7 +17,7 @@ class CCLayerTreeHost;
 
 class CCSingleThreadProxy : public CCProxy, CCLayerTreeHostImplClient {
 public:
-    static PassOwnPtr<CCProxy> create(CCLayerTreeHost*);
+    static scoped_ptr<CCProxy> create(CCLayerTreeHost*);
     virtual ~CCSingleThreadProxy();
 
     // CCProxy implementation
@@ -52,7 +51,7 @@ public:
     virtual void onCanDrawStateChanged(bool canDraw) OVERRIDE { }
     virtual void setNeedsRedrawOnImplThread() OVERRIDE;
     virtual void setNeedsCommitOnImplThread() OVERRIDE;
-    virtual void postAnimationEventsToMainThreadOnImplThread(PassOwnPtr<CCAnimationEventsVector>, double wallClockTime) OVERRIDE;
+    virtual void postAnimationEventsToMainThreadOnImplThread(scoped_ptr<CCAnimationEventsVector>, double wallClockTime) OVERRIDE;
     virtual void releaseContentsTexturesOnImplThread() OVERRIDE;
 
     // Called by the legacy path where RenderWidget does the scheduling.