Not for review - Rebase of crrev.com/62833003

Source/platform/graphics/GraphicsLayer.cpp

Index: Source/platform/graphics/GraphicsLayer.cpp
diff --git a/Source/platform/graphics/GraphicsLayer.cpp b/Source/platform/graphics/GraphicsLayer.cpp
index b145219e0cea5821730b54e02c5d13fa9d5d62fa..f8d50fd05c35547b057f2737b95954c4f6bcea34 100644
--- a/Source/platform/graphics/GraphicsLayer.cpp
+++ b/Source/platform/graphics/GraphicsLayer.cpp
@@ -48,6 +48,7 @@
 #include "public/platform/WebLayer.h"
 #include "public/platform/WebPoint.h"
 #include "public/platform/WebSize.h"
+#include "public/platform/WebString.h"
 #include "wtf/CurrentTime.h"
 #include "wtf/HashMap.h"
 #include "wtf/HashSet.h"
@@ -964,6 +965,16 @@ void GraphicsLayer::setContentsToNinePatch(Image* image, const IntRect& aperture
     setContentsTo(m_ninePatchLayer ? m_ninePatchLayer->layer() : 0);
 }
 
+void GraphicsLayer::addAnimatedProperty(const String& propertyName)
+{
+    platformLayer()->addAnimatedProperty(WebString(propertyName));
+}
+
+void GraphicsLayer::clearAnimatedProperties()
+{
+    platformLayer()->clearAnimatedProperties();
+}
+
 bool GraphicsLayer::addAnimation(PassOwnPtr<WebCompositorAnimation> popAnimation)
 {
     OwnPtr<WebCompositorAnimation> animation(popAnimation);