Remove mail blockquote special case handling.

Source/WebCore/editing/CompositeEditCommand.cpp

Index: Source/WebCore/editing/CompositeEditCommand.cpp
diff --git a/Source/WebCore/editing/CompositeEditCommand.cpp b/Source/WebCore/editing/CompositeEditCommand.cpp
index 601bb1ab8b00b5223523c31af9ad4cc293fd9cdb..799d3fc30cd4e8156406051b4604cb973115627b 100644
--- a/Source/WebCore/editing/CompositeEditCommand.cpp
+++ b/Source/WebCore/editing/CompositeEditCommand.cpp
@@ -288,9 +288,9 @@ void CompositeEditCommand::removeStyledElement(PassRefPtr<Element> element)
     applyCommandToComposite(ApplyStyleCommand::create(element, true));
 }
 
-void CompositeEditCommand::insertParagraphSeparator(bool useDefaultParagraphElement, bool pasteBlockqutoeIntoUnquotedArea)
+void CompositeEditCommand::insertParagraphSeparator(bool useDefaultParagraphElement)
 {
-    applyCommandToComposite(InsertParagraphSeparatorCommand::create(document(), useDefaultParagraphElement, pasteBlockqutoeIntoUnquotedArea));
+    applyCommandToComposite(InsertParagraphSeparatorCommand::create(document(), useDefaultParagraphElement));
 }
 
 void CompositeEditCommand::insertLineBreak()
@@ -1321,60 +1321,6 @@ bool CompositeEditCommand::breakOutOfEmptyListItem()
     return true;
 }
 
-// If the caret is in an empty quoted paragraph, and either there is nothing before that
-// paragraph, or what is before is unquoted, and the user presses delete, unquote that paragraph.
-bool CompositeEditCommand::breakOutOfEmptyMailBlockquotedParagraph()
-{
-    if (!endingSelection().isCaret())
-        return false;
-        
-    VisiblePosition caret(endingSelection().visibleStart());
-    Node* highestBlockquote = highestEnclosingNodeOfType(caret.deepEquivalent(), &isMailBlockquote);
-    if (!highestBlockquote)
-        return false;
-        
-    if (!isStartOfParagraph(caret) || !isEndOfParagraph(caret))
-        return false;
-    
-    VisiblePosition previous(caret.previous(CannotCrossEditingBoundary));
-    // Only move forward if there's nothing before the caret, or if there's unquoted content before it.
-    if (enclosingNodeOfType(previous.deepEquivalent(), &isMailBlockquote))
-        return false;
-    
-    RefPtr<Node> br = createBreakElement(document());
-    // We want to replace this quoted paragraph with an unquoted one, so insert a br
-    // to hold the caret before the highest blockquote.
-    insertNodeBefore(br, highestBlockquote);
-    VisiblePosition atBR(positionBeforeNode(br.get()));
-    // If the br we inserted collapsed, for example foo<br><blockquote>...</blockquote>, insert
-    // a second one.
-    if (!isStartOfParagraph(atBR))
-        insertNodeBefore(createBreakElement(document()), br);
-    setEndingSelection(VisibleSelection(atBR, endingSelection().isDirectional()));
-    
-    // If this is an empty paragraph there must be a line break here.
-    if (!lineBreakExistsAtVisiblePosition(caret))
-        return false;
-
-    Position caretPos(caret.deepEquivalent().downstream());
-    // A line break is either a br or a preserved newline.
-    ASSERT(caretPos.deprecatedNode()->hasTagName(brTag) || (caretPos.deprecatedNode()->isTextNode() && caretPos.deprecatedNode()->renderer()->style()->preserveNewline()));
-    
-    if (caretPos.deprecatedNode()->hasTagName(brTag))
-        removeNodeAndPruneAncestors(caretPos.deprecatedNode());
-    else if (caretPos.deprecatedNode()->isTextNode()) {
-        ASSERT(caretPos.deprecatedEditingOffset() == 0);
-        Text* textNode = toText(caretPos.deprecatedNode());
-        ContainerNode* parentNode = textNode->parentNode();
-        // The preserved newline must be the first thing in the node, since otherwise the previous
-        // paragraph would be quoted, and we verified that it wasn't above.
-        deleteTextFromNode(textNode, 0, 1);
-        prune(parentNode);
-    }
-
-    return true;
-}
-
 // Operations use this function to avoid inserting content into an anchor when at the start or the end of
 // that anchor, as in NSTextView.
 // FIXME: This is only an approximation of NSTextViews insertion behavior, which varies depending on how