Have RenderBlockFlow sub-classes' methods call their super-class method properly.

Source/core/rendering/RenderFlowThread.cpp

 /*
  * Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 301 matching lines @@
         layer()->paint(context, info.rect, info.paintBehavior, 0, region, PaintLayerTemporaryClipRects);
 
         context->restore();
     }
 }
 
 bool RenderFlowThread::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction)
 {
     if (hitTestAction == HitTestBlockBackground)
         return false;
-    return RenderBlock::nodeAtPoint(request, result, locationInContainer, accumulatedOffset, hitTestAction);
+    return RenderBlockFlow::nodeAtPoint(request, result, locationInContainer, accumulatedOffset, hitTestAction);
 }
 
 bool RenderFlowThread::hitTestFlowThreadPortionInRegion(RenderRegion* region, const LayoutRect& flowThreadPortionRect, const LayoutRect& flowThreadPortionOverflowRect, const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset) const
 {
     LayoutRect regionClippingRect = computeRegionClippingRect(accumulatedOffset, flowThreadPortionRect, flowThreadPortionOverflowRect);
     if (!regionClippingRect.contains(locationInContainer.point()))
         return false;
 
     LayoutSize renderFlowThreadOffset;
     if (style()->isFlippedBlocksWritingMode()) {
@@ skipping 842 matching lines @@
 {
     if (!m_renderFlowThread)
         return;
     RenderView* view = m_renderFlowThread->view();
     ASSERT(view->flowThreadController()->currentRenderFlowThread() == m_renderFlowThread);
     view->flowThreadController()->setCurrentRenderFlowThread(m_previousRenderFlowThread);
 }
 
 
 } // namespace WebCore