Delete RenderBlockFlow.

sky/engine/core/editing/htmlediting.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 875 matching lines @@
     const Element* secondElement = toElement(second);
     if (!firstElement->hasTagName(secondElement->tagQName()))
         return false;
 
     return firstElement->hasEquivalentAttributes(secondElement);
 }
 
 bool isBlockFlowElement(const Node& node)
 {
     RenderObject* renderer = node.renderer();
-    return node.isElementNode() && renderer && renderer->isRenderBlockFlow();
+    return node.isElementNode() && renderer && renderer->isRenderParagraph();
 }
 
 Position adjustedSelectionStartForStyleComputation(const VisibleSelection& selection)
 {
     // This function is used by range style computations to avoid bugs like:
     // <rdar://problem/4017641> REGRESSION (Mail): you can only bold/unbold a selection starting from end of line once
     // It is important to skip certain irrelevant content at the start of the selection, so we do not wind up
     // with a spurious "mixed" style.
 
     VisiblePosition visiblePosition(selection.start());
     if (visiblePosition.isNull())
         return Position();
 
     // if the selection is a caret, just return the position, since the style
     // behind us is relevant
     if (selection.isCaret())
         return visiblePosition.deepEquivalent();
 
     // if the selection starts just before a paragraph break, skip over it
     if (isEndOfParagraph(visiblePosition))
         return visiblePosition.next().deepEquivalent().downstream();
 
     // otherwise, make sure to be at the start of the first selected node,
     // instead of possibly at the end of the last node before the selection
     return visiblePosition.deepEquivalent().downstream();
 }
 
 } // namespace blink