Revert 140571

Source/WebCore/page/scrolling/ScrollingTree.h

Index: Source/WebCore/page/scrolling/ScrollingTree.h
===================================================================
--- Source/WebCore/page/scrolling/ScrollingTree.h	(revision 143052)
+++ Source/WebCore/page/scrolling/ScrollingTree.h	(working copy)
@@ -79,9 +79,6 @@
     // Must be called from the scrolling thread. Handles the wheel event.
     void handleWheelEvent(const PlatformWheelEvent&);
 
-    void setMainFrameIsRubberBanding(bool);
-    bool isRubberBandInProgress();
-
     void invalidate();
     void commitNewTreeState(PassOwnPtr<ScrollingStateTree>);
 
@@ -102,8 +99,6 @@
     void setScrollingPerformanceLoggingEnabled(bool flag);
     bool scrollingPerformanceLoggingEnabled();
 
-    ScrollingTreeScrollingNode* rootNode() const { return m_rootNode.get(); }
-
 private:
     explicit ScrollingTree(ScrollingCoordinator*);
 
@@ -126,7 +121,6 @@
     bool m_canGoForward;
     bool m_mainFramePinnedToTheLeft;
     bool m_mainFramePinnedToTheRight;
-    bool m_mainFrameIsRubberBanding;
 
     bool m_scrollingPerformanceLoggingEnabled;