Revert removal of events

Source/core/page/scrolling/ScrollingCoordinator.cpp

Index: Source/core/page/scrolling/ScrollingCoordinator.cpp
diff --git a/Source/core/page/scrolling/ScrollingCoordinator.cpp b/Source/core/page/scrolling/ScrollingCoordinator.cpp
index e16195fbc7fcead75dd744f1a7a6566873738834..413e592cf3aa72013114d6570190f5f00f3bd190 100644
--- a/Source/core/page/scrolling/ScrollingCoordinator.cpp
+++ b/Source/core/page/scrolling/ScrollingCoordinator.cpp
@@ -113,9 +113,11 @@ void ScrollingCoordinator::frameViewLayoutUpdated(FrameView* frameView)
     // is not the main frame.
     Region nonFastScrollableRegion = computeNonFastScrollableRegion(m_page->mainFrame(), IntPoint());
     setNonFastScrollableRegion(nonFastScrollableRegion);
+#if ENABLE(TOUCH_EVENT_TRACKING)
     Vector<IntRect> touchEventTargetRects;
     computeAbsoluteTouchEventTargetRects(m_page->mainFrame()->document(), touchEventTargetRects);
     setTouchEventTargetRects(touchEventTargetRects);
+#endif
     if (WebLayer* scrollLayer = scrollingWebLayerForScrollableArea(frameView))
         scrollLayer->setBounds(frameView->contentsSize());
 }
@@ -296,6 +298,7 @@ void ScrollingCoordinator::setTouchEventTargetRects(const Vector<IntRect>& absol
 
 void ScrollingCoordinator::touchEventTargetRectsDidChange(const Document*)
 {
+#if ENABLE(TOUCH_EVENT_TRACKING)
     // The rects are always evaluated and used in the main frame coordinates.
     FrameView* frameView = m_page->mainFrame()->view();
     Document* document = m_page->mainFrame()->document();
@@ -307,6 +310,7 @@ void ScrollingCoordinator::touchEventTargetRectsDidChange(const Document*)
     Vector<IntRect> touchEventTargetRects;
     computeAbsoluteTouchEventTargetRects(document, touchEventTargetRects);
     setTouchEventTargetRects(touchEventTargetRects);
+#endif
 }
 
 void ScrollingCoordinator::setWheelEventHandlerCount(unsigned count)
@@ -389,6 +393,7 @@ Region ScrollingCoordinator::computeNonFastScrollableRegion(const Frame* frame,
     return nonFastScrollableRegion;
 }
 
+#if ENABLE(TOUCH_EVENT_TRACKING)
 static void accumulateRendererTouchEventTargetRects(Vector<IntRect>& rects, const RenderObject* renderer, const IntRect& parentRect = IntRect())
 {
     IntRect adjustedParentRect = parentRect;
@@ -459,6 +464,7 @@ void ScrollingCoordinator::computeAbsoluteTouchEventTargetRects(const Document*
     // FIXME: These rects won't be properly updated if the renderers are in a sub-tree that scrolls.
     accumulateDocumentEventTargetRects(rects, document);
 }
+#endif
 
 unsigned ScrollingCoordinator::computeCurrentWheelEventHandlerCount()
 {