Remove mail blockquote special case handling.

Source/WebCore/editing/mac/EditorMac.mm

 /*
  * Copyright (C) 2006, 2007, 2008 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 71 matching lines @@
     RefPtr<Range> range = selectedRange();
     bool choosePlainText;
     
     m_frame->editor()->client()->setInsertionPasteboard(NSGeneralPboard);
     RefPtr<DocumentFragment> fragment = pasteboard->documentFragment(m_frame, range, allowPlainText, choosePlainText);
     if (fragment && shouldInsertFragment(fragment, range, EditorInsertActionPasted))
         pasteAsFragment(fragment, canSmartReplaceWithPasteboard(pasteboard), false);
     m_frame->editor()->client()->setInsertionPasteboard(String());
 }
 
-bool Editor::insertParagraphSeparatorInQuotedContent()
-{
-    // FIXME: Why is this missing calls to canEdit, canEditRichly, etc...
-    TypingCommand::insertParagraphSeparatorInQuotedContent(m_frame->document());
-    revealSelectionAfterEditingOperation();
-    return true;
-}
-
 static RenderStyle* styleForSelectionStart(Frame* frame, Node *&nodeToRemove)
 {
     nodeToRemove = 0;
 
     if (frame->selection()->isNone())
         return 0;
 
     Position position = frame->selection()->selection().visibleStart().deepEquivalent();
     if (!position.isCandidate() || position.isNull())
         return 0;
@@ skipping 157 matching lines @@
 {
     return Pasteboard::getStringSelection(m_frame, DefaultSelectedTextType);
 }
 
 PassRefPtr<SharedBuffer> Editor::dataSelectionForPasteboard(const String& pasteboardType)
 {
     return Pasteboard::getDataSelection(m_frame, pasteboardType);
 }
 
 } // namespace WebCore