Remove all fling related stuff from the renderer assuming that browser side

cc/trees/layer_tree_host_impl.h

Index: cc/trees/layer_tree_host_impl.h
diff --git a/cc/trees/layer_tree_host_impl.h b/cc/trees/layer_tree_host_impl.h
index dec0e6c7f763f2e6a9675e35ab77e1656c5324ff..ac9944cf8c2c14f6b159fdf27389d2411fe078c2 100644
--- a/cc/trees/layer_tree_host_impl.h
+++ b/cc/trees/layer_tree_host_impl.h
@@ -115,8 +115,6 @@ class CC_EXPORT LayerTreeHostImpl
       LayerScrollOffsetDelegate* root_layer_scroll_offset_delegate) OVERRIDE;
   virtual void OnRootLayerDelegatedScrollOffsetChanged() OVERRIDE;
   virtual void ScrollEnd() OVERRIDE;
-  virtual InputHandler::ScrollStatus FlingScrollBegin() OVERRIDE;
-  virtual void NotifyCurrentFlingVelocity(gfx::Vector2dF velocity) OVERRIDE;
   virtual void MouseMoveAt(gfx::Point viewport_point) OVERRIDE;
   virtual void PinchGestureBegin() OVERRIDE;
   virtual void PinchGestureUpdate(float magnify_delta,
@@ -160,7 +158,6 @@ class CC_EXPORT LayerTreeHostImpl
   virtual void Animate(base::TimeTicks monotonic_time,
                        base::Time wall_clock_time);
   virtual void UpdateAnimationState(bool start_ready_animations);
-  void MainThreadHasStoppedFlinging();
   void UpdateBackgroundAnimateTicking(bool should_background_tick);
   void SetViewportDamage(gfx::Rect damage_rect);
 
@@ -371,9 +368,6 @@ class CC_EXPORT LayerTreeHostImpl
   gfx::Vector2dF accumulated_root_overscroll() const {
     return accumulated_root_overscroll_;
   }
-  gfx::Vector2dF current_fling_velocity() const {
-    return current_fling_velocity_;
-  }
 
   bool pinch_gesture_active() const { return pinch_gesture_active_; }
 
@@ -543,7 +537,6 @@ class CC_EXPORT LayerTreeHostImpl
   ManagedMemoryPolicy cached_managed_memory_policy_;
 
   gfx::Vector2dF accumulated_root_overscroll_;
-  gfx::Vector2dF current_fling_velocity_;
 
   bool pinch_gesture_active_;
   bool pinch_gesture_end_should_clear_scrolling_layer_;