Splits SmoothGestureController from RenderWidgetHostImpl

content/browser/renderer_host/render_widget_host_impl.h

Index: content/browser/renderer_host/render_widget_host_impl.h
diff --git a/content/browser/renderer_host/render_widget_host_impl.h b/content/browser/renderer_host/render_widget_host_impl.h
index c088309b4d4fe916e858b61a716b4e176a852328..562e37b6680b4609e0e5215716d7178c793a52bb 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -68,7 +68,7 @@ class MockRenderWidgetHost;
 class OverscrollController;
 class RenderWidgetHostDelegate;
 class RenderWidgetHostViewPort;
-class SmoothScrollGesture;
+class SmoothScrollGestureController;
 class TouchEventQueue;
 struct EditCommand;
 
@@ -561,8 +561,8 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
   void OnInputEventAck(WebKit::WebInputEvent::Type event_type,
                        InputEventAckState ack_result);
   void OnBeginSmoothScroll(
-      int gesture_id,
-      const ViewHostMsg_BeginSmoothScroll_Params &params);
+      const ViewHostMsg_BeginSmoothScroll_Params& params,
+      bool* smooth_scroll_started);
   void OnSelectRangeAck();
   void OnMsgMoveCaretAck();
   virtual void OnFocus();
@@ -642,9 +642,6 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
   // which may get in recursive loops).
   void DelayedAutoResized();
 
-  // Called periodically to advance the active scroll gesture after being
-  // initiated by OnBeginSmoothScroll.
-  void TickActiveSmoothScrollGesture();
 
   // Our delegate, which wants to know mainly about keyboard events.
   // It will remain non-NULL until DetachDelegate() is called.
@@ -829,12 +826,7 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
 
   base::WeakPtrFactory<RenderWidgetHostImpl> weak_factory_;
 
-  typedef std::map<int, scoped_refptr<SmoothScrollGesture> >
-      SmoothScrollGestureMap;
-  SmoothScrollGestureMap active_smooth_scroll_gestures_;
-  base::TimeTicks last_smooth_scroll_gestures_tick_time_;
-  bool tick_active_smooth_scroll_gestures_task_posted_;
-
+  scoped_ptr<SmoothScrollGestureController> smooth_scroll_gesture_controller_;
   scoped_ptr<TouchEventQueue> touch_event_queue_;
   scoped_ptr<GestureEventFilter> gesture_event_filter_;
   scoped_ptr<OverscrollController> overscroll_controller_;