cc: Remove wtf includes from *LayerTextureUpdater headers

cc/scrollbar_layer.h

Index: cc/scrollbar_layer.h
diff --git a/cc/scrollbar_layer.h b/cc/scrollbar_layer.h
index 7f0f13c0279e20a01821654403703c120b3497f8..264577498bdab70e1eaff082818c7e837e6cbabf 100644
--- a/cc/scrollbar_layer.h
+++ b/cc/scrollbar_layer.h
@@ -52,14 +52,14 @@ private:
 
     GC3Denum m_textureFormat;
 
-    RefPtr<CachingBitmapCanvasLayerTextureUpdater> m_backTrackUpdater;
-    RefPtr<CachingBitmapCanvasLayerTextureUpdater> m_foreTrackUpdater;
-    RefPtr<CachingBitmapCanvasLayerTextureUpdater> m_thumbUpdater;
+    scoped_refptr<CachingBitmapCanvasLayerTextureUpdater> m_backTrackUpdater;
+    scoped_refptr<CachingBitmapCanvasLayerTextureUpdater> m_foreTrackUpdater;
+    scoped_refptr<CachingBitmapCanvasLayerTextureUpdater> m_thumbUpdater;
 
     // All the parts of the scrollbar except the thumb
-    OwnPtr<LayerTextureUpdater::Texture> m_backTrack;
-    OwnPtr<LayerTextureUpdater::Texture> m_foreTrack;
-    OwnPtr<LayerTextureUpdater::Texture> m_thumb;
+    scoped_ptr<LayerTextureUpdater::Texture> m_backTrack;
+    scoped_ptr<LayerTextureUpdater::Texture> m_foreTrack;
+    scoped_ptr<LayerTextureUpdater::Texture> m_thumb;
 };
 
 }