[not for review - epic CL] Adding Elastic+Momentum+Layered scrolling to views::ScrollView

ui/compositor/layer.h

Index: ui/compositor/layer.h
diff --git a/ui/compositor/layer.h b/ui/compositor/layer.h
index c19e8eab056130dc0e79971abfe0e6b979465510..c1f4fae7e54afcb31da82e32764e3f8302352062 100644
--- a/ui/compositor/layer.h
+++ b/ui/compositor/layer.h
@@ -387,6 +387,12 @@ class COMPOSITOR_EXPORT Layer
     return damaged_region_;
   }
 
+  gfx::ScrollOffset CurrentScrollOffset() const;
+  void SetScrollOffset(const gfx::ScrollOffset& offset);
+  void SetScrollable(Layer* parent_clip_layer,
+                     bool can_overscroll,
+                     const base::Closure& on_scroll);
+
  private:
   friend class LayerOwner;