Index: frame/FrameView.cpp
===================================================================
--- frame/FrameView.cpp	(revision 159695)
+++ frame/FrameView.cpp	(working copy)
@@ -198,8 +198,10 @@
     if (!isMainFrame())
         return;
 
+#if 0
     ScrollableArea::setVerticalScrollElasticity(ScrollElasticityAllowed);
     ScrollableArea::setHorizontalScrollElasticity(ScrollElasticityAllowed);
+#endif
 }
 
 PassRefPtr<FrameView> FrameView::create(Frame* frame)
Index: platform/mac/NSScrollerImpDetails.mm
===================================================================
--- platform/mac/NSScrollerImpDetails.mm	(revision 159695)
+++ platform/mac/NSScrollerImpDetails.mm	(working copy)
@@ -33,6 +33,7 @@
 
 bool isScrollbarOverlayAPIAvailable()
 {
+#if 0
     static bool apiAvailable;
     static bool shouldInitialize = true;
     if (shouldInitialize) {
@@ -43,6 +44,9 @@
                        && [scrollerImpPairClass instancesRespondToSelector:@selector(scrollerStyle)];
     }
     return apiAvailable;
+#else
+    return false;
+#endif
 }
 
 NSScrollerStyle recommendedScrollerStyle() {