[not for review] Add Draw entries to window Performance Timeline

cc/blink/web_layer_impl.h

Index: cc/blink/web_layer_impl.h
diff --git a/cc/blink/web_layer_impl.h b/cc/blink/web_layer_impl.h
index 3a8130e30b4b068fa45108b7cbf1bdc3aa123bf2..7aac672966485e8d0542069b97fa2018645d013e 100644
--- a/cc/blink/web_layer_impl.h
+++ b/cc/blink/web_layer_impl.h
@@ -6,6 +6,7 @@
 #define CC_BLINK_WEB_LAYER_IMPL_H_
 
 #include <string>
+#include <utility>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ -121,6 +122,10 @@ class WebLayerImpl : public blink::WebLayer, public cc::LayerClient {
   virtual void setTouchEventHandlerRegion(
       const blink::WebVector<blink::WebRect>& region);
   virtual blink::WebVector<blink::WebRect> touchEventHandlerRegion() const;
+  virtual void setSmoothnessTimingRequests(
+      const blink::WebVector<std::pair<int64_t, blink::WebRect> >& rects);
+  virtual blink::WebVector<std::pair<int64_t, blink::WebRect> >
+      smoothnessTimingRequests() const;
   virtual void setIsContainerForFixedPositionLayers(bool is_container);
   virtual bool isContainerForFixedPositionLayers() const;
   virtual void setPositionConstraint(