Remove mail blockquote special case handling.

Source/WebCore/editing/InsertParagraphSeparatorCommand.cpp

 /*
  * Copyright (C) 2005, 2006 Apple Computer, 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 41 matching lines @@
     // We don't want to return a root node (if it happens to be a div, e.g., in a document fragment) because there are no
     // siblings for us to append to.
     while (!curBlock->nextSibling() && curBlock->parentElement()->hasTagName(divTag) && curBlock->parentElement()->parentElement()) {
         if (curBlock->parentElement()->hasAttributes())
             break;
         curBlock = curBlock->parentElement();
     }
     return curBlock;
 }
 
-InsertParagraphSeparatorCommand::InsertParagraphSeparatorCommand(Document *document, bool mustUseDefaultParagraphElement, bool pasteBlockqutoeIntoUnquotedArea) 
+InsertParagraphSeparatorCommand::InsertParagraphSeparatorCommand(Document *document, bool mustUseDefaultParagraphElement)
     : CompositeEditCommand(document)
     , m_mustUseDefaultParagraphElement(mustUseDefaultParagraphElement)
-    , m_pasteBlockqutoeIntoUnquotedArea(pasteBlockqutoeIntoUnquotedArea)
 {
 }
 
 bool InsertParagraphSeparatorCommand::preservesTypingStyle() const
 {
     return true;
 }
 
 void InsertParagraphSeparatorCommand::calculateStyleBeforeInsertion(const Position &pos)
 {
@@ skipping 140 matching lines @@
         if (nestNewBlock) {
             if (isFirstInBlock && !lineBreakExistsAtVisiblePosition(visiblePos)) {
                 // The block is empty.  Create an empty block to
                 // represent the paragraph that we're leaving.
                 RefPtr<Element> extraBlock = createDefaultParagraphElement(document());
                 appendNode(extraBlock, startBlock);
                 appendBlockPlaceholder(extraBlock);
             }
             appendNode(blockToInsert, startBlock);
         } else {
-            // We can get here if we pasted a copied portion of a blockquote with a newline at the end and are trying to paste it
-            // into an unquoted area. We then don't want the newline within the blockquote or else it will also be quoted.
-            if (m_pasteBlockqutoeIntoUnquotedArea) {
-                if (Node* highestBlockquote = highestEnclosingNodeOfType(canonicalPos, &isMailBlockquote))
-                    startBlock = toElement(highestBlockquote);
-            }
-
             // Most of the time we want to stay at the nesting level of the startBlock (e.g., when nesting within lists).  However,
             // for div nodes, this can result in nested div tags that are hard to break out of.
             Element* siblingNode = startBlock.get();
             if (blockToInsert->hasTagName(divTag))
                 siblingNode = highestVisuallyEquivalentDivBelowRoot(startBlock.get());
             insertNodeAfter(blockToInsert, siblingNode);
         }
 
         // Recreate the same structure in the new paragraph.
         
@@ skipping 148 matching lines @@
             if (positionAfterSplit.deprecatedNode()->isTextNode())
                 insertTextIntoNode(toText(positionAfterSplit.containerNode()), 0, nonBreakingSpaceString());
         }
     }
 
     setEndingSelection(VisibleSelection(firstPositionInNode(blockToInsert.get()), DOWNSTREAM, endingSelection().isDirectional()));
     applyStyleAfterInsertion(startBlock.get());
 }
 
 } // namespace WebCore