Merge 137939

Source/WebCore/page/scrolling/ScrollingCoordinator.h

Index: Source/WebCore/page/scrolling/ScrollingCoordinator.h
===================================================================
--- Source/WebCore/page/scrolling/ScrollingCoordinator.h	(revision 138187)
+++ Source/WebCore/page/scrolling/ScrollingCoordinator.h	(working copy)
@@ -29,6 +29,7 @@
 #include "IntRect.h"
 #include "LayoutRect.h"
 #include "PlatformWheelEvent.h"
+#include "RenderObject.h"
 #include "ScrollTypes.h"
 #include "Timer.h"
 #include <wtf/Forward.h>
@@ -50,6 +51,7 @@
 
 enum ScrollingNodeType { ScrollingNode, FixedNode };
 
+class Document;
 class Frame;
 class FrameView;
 class GraphicsLayer;
@@ -149,7 +151,12 @@
     virtual void scrollableAreaScrollLayerDidChange(ScrollableArea*, GraphicsLayer*) { }
     virtual void setLayerIsContainerForFixedPositionLayers(GraphicsLayer*, bool) { }
     virtual void setLayerIsFixedToContainerLayer(GraphicsLayer*, bool) { }
+    virtual void touchEventTargetRectsDidChange(const Document*) { }
 
+#if ENABLE(TOUCH_EVENT_TRACKING)
+    void computeAbsoluteTouchEventTargetRects(const Document*, Vector<IntRect>&);
+#endif
+
     static String mainThreadScrollingReasonsAsText(MainThreadScrollingReasons);
     String mainThreadScrollingReasonsAsText() const;