Remove flags for nonFastScrollable and touchEventHandler regions getting changed

cc/layer.h

Index: cc/layer.h
diff --git a/cc/layer.h b/cc/layer.h
index 824e7b59f250fceaaf274de78d3d14e525e306fd..62e61495d515752577c4acaa7dc5fc77e0ecbca6 100644
--- a/cc/layer.h
+++ b/cc/layer.h
@@ -165,11 +165,9 @@ public:
     bool haveWheelEventHandlers() const { return m_haveWheelEventHandlers; }
 
     void setNonFastScrollableRegion(const Region&);
-    void setNonFastScrollableRegionChanged() { m_nonFastScrollableRegionChanged = true; }
     const Region& nonFastScrollableRegion() const { return m_nonFastScrollableRegion; }
 
     void setTouchEventHandlerRegion(const Region&);
-    void setTouchEventHandlerRegionChanged() { m_touchEventHandlerRegionChanged = true; }
     const Region& touchEventHandlerRegion() const { return m_touchEventHandlerRegion; }
 
     void setLayerScrollClient(WebKit::WebLayerScrollClient* layerScrollClient) { m_layerScrollClient = layerScrollClient; }
@@ -362,9 +360,7 @@ private:
     bool m_shouldScrollOnMainThread;
     bool m_haveWheelEventHandlers;
     Region m_nonFastScrollableRegion;
-    bool m_nonFastScrollableRegionChanged;
     Region m_touchEventHandlerRegion;
-    bool m_touchEventHandlerRegionChanged;
     gfx::PointF m_position;
     gfx::PointF m_anchorPoint;
     SkColor m_backgroundColor;