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

Source/core/rendering/RenderRegion.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 512 matching lines @@
             styleInfo.cached = true;
             temp.set(object, styleInfo);
         }
     }
 
     m_renderObjectRegionStyle.swap(temp);
 }
 
 void RenderRegion::insertedIntoTree()
 {
-    RenderBlock::insertedIntoTree();
+    RenderBlockFlow::insertedIntoTree();
 
     attachRegion();
 }
 
 void RenderRegion::willBeRemovedFromTree()
 {
-    RenderBlock::willBeRemovedFromTree();
+    RenderBlockFlow::willBeRemovedFromTree();
 
     detachRegion();
 }
 
 PassRefPtr<RenderStyle> RenderRegion::computeStyleInRegion(const RenderObject* object)
 {
     ASSERT(object);
     ASSERT(object->view());
     ASSERT(!object->isAnonymous());
     ASSERT(object->node() && object->node()->isElementNode());
@@ skipping 59 matching lines @@
     m_renderObjectRegionStyle.remove(object);
 
     // Clear the style for the children of this object.
     for (RenderObject* child = object->lastChild(); child; child = child->previousSibling())
         clearObjectStyleInRegion(child);
 }
 
 void RenderRegion::computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const
 {
     if (!isValid()) {
-        RenderBlock::computeIntrinsicLogicalWidths(minLogicalWidth, maxLogicalWidth);
+        RenderBlockFlow::computeIntrinsicLogicalWidths(minLogicalWidth, maxLogicalWidth);
         return;
     }
 
     minLogicalWidth = m_flowThread->minPreferredLogicalWidth();
     maxLogicalWidth = m_flowThread->maxPreferredLogicalWidth();
 }
 
 void RenderRegion::getRanges(Vector<RefPtr<Range> >& rangeObjects) const
 {
     RenderNamedFlowThread* namedFlow = view()->flowThreadController()->ensureRenderFlowThreadWithName(style()->regionThread());
@@ skipping 46 matching lines @@
     return generatingNode();
 }
 
 bool RenderRegion::isElementBasedRegion() const
 {
     Node* node = nodeForRegion();
     return node && node->isElementNode() && !node->isPseudoElement();
 }
 
 } // namespace WebCore