Made Blink aware of top controls offset (Chromium-side)

ui/compositor/compositor.h

Index: ui/compositor/compositor.h
diff --git a/ui/compositor/compositor.h b/ui/compositor/compositor.h
index 5f4ed2ee4d2c564eef8fb6c1a79d2a75fa188cc3..63f4dec550e3636c4f5cbed97058ab828332c8fb 100644
--- a/ui/compositor/compositor.h
+++ b/ui/compositor/compositor.h
@@ -232,8 +232,10 @@ class COMPOSITOR_EXPORT Compositor
   virtual void DidBeginMainFrame() OVERRIDE {}
   virtual void BeginMainFrame(const cc::BeginFrameArgs& args) OVERRIDE;
   virtual void Layout() OVERRIDE;
-  virtual void ApplyScrollAndScale(const gfx::Vector2d& scroll_delta,
-                                   float page_scale) OVERRIDE {}
+  virtual void ApplyViewportDeltas(
+      const gfx::Vector2d& scroll_delta,
+      float page_scale,
+      float top_controls_delta) OVERRIDE {}
   virtual scoped_ptr<cc::OutputSurface> CreateOutputSurface(bool fallback)
       OVERRIDE;
   virtual void DidInitializeOutputSurface() OVERRIDE {}