Scrollbar fade animation broken on Android regression resolved.

cc/input/scrollbar_animation_controller.h

Index: cc/input/scrollbar_animation_controller.h
diff --git a/cc/input/scrollbar_animation_controller.h b/cc/input/scrollbar_animation_controller.h
index 7bb421f4946bf9d18251f64fbf31c61cf084a050..d112a20e12bd3c70a345a52c40ee48f638002207 100644
--- a/cc/input/scrollbar_animation_controller.h
+++ b/cc/input/scrollbar_animation_controller.h
@@ -46,6 +46,9 @@ class CC_EXPORT ScrollbarAnimationController {
   virtual void DidMouseLeave() {}
   virtual void DidMouseMoveNear(float distance) {}
 
+  // Used for testing.
+  bool currently_scrolling() { return currently_scrolling_; }
+
  protected:
   ScrollbarAnimationController(int scroll_layer_id,
                                ScrollbarAnimationControllerClient* client,