Selectively disable rubber banding on mac.

Source/core/frame/FrameView.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 3094 matching lines @@
 }
 
 void FrameView::removeChild(Widget* widget)
 {
     if (widget->isFrameView())
         removeScrollableArea(toFrameView(widget));
 
     ScrollView::removeChild(widget);
 }
 
-bool FrameView::wheelEvent(const PlatformWheelEvent& wheelEvent)
+bool FrameView::wheelEvent(const PlatformWheelEvent& wheelEvent, bool canRubberbandLeft, bool canRubberbandRight)
 {
     // Note that to allow for rubber-band over-scroll behavior, even non-scrollable views
     // should handle wheel events.
 #if !USE(RUBBER_BANDING)
     if (!isScrollable())
         return false;
 #endif
 
     // We don't allow mouse wheeling to happen in a ScrollView that has had its scrollbars explicitly disabled.
     if (!canHaveScrollbars())
         return false;
 
-    return ScrollableArea::handleWheelEvent(wheelEvent);
+    return ScrollableArea::handleWheelEvent(wheelEvent, canRubberbandLeft, canRubberbandRight);
 }
 
 bool FrameView::isVerticalDocument() const
 {
     RenderView* renderView = this->renderView();
     if (!renderView)
         return true;
 
     return renderView->style()->isHorizontalWritingMode();
 }
@@ skipping 54 matching lines @@
 void FrameView::willRemoveScrollbar(Scrollbar* scrollbar, ScrollbarOrientation orientation)
 {
     ScrollableArea::willRemoveScrollbar(scrollbar, orientation);
     if (AXObjectCache* cache = axObjectCache()) {
         cache->remove(scrollbar);
         cache->handleScrollbarUpdate(this);
     }
 }
 
 } // namespace WebCore