diff -r 000000000000 -r 6474c204b198 editor/libeditor/text/nsTextEditUtils.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/editor/libeditor/text/nsTextEditUtils.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,98 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/Assertions.h"
+#include "mozilla/dom/Element.h"
+#include "nsAString.h"
+#include "nsCOMPtr.h"
+#include "nsCaseTreatment.h"
+#include "nsDebug.h"
+#include "nsEditor.h"
+#include "nsError.h"
+#include "nsGkAtoms.h"
+#include "nsIDOMElement.h"
+#include "nsIDOMNode.h"
+#include "nsNameSpaceManager.h"
+#include "nsLiteralString.h"
+#include "nsPlaintextEditor.h"
+#include "nsString.h"
+#include "nsTextEditUtils.h"
+
+using namespace mozilla;
+
+///////////////////////////////////////////////////////////////////////////
+// IsBody: true if node an html body node
+bool 
+nsTextEditUtils::IsBody(nsIDOMNode *node)
+{
+  return nsEditor::NodeIsType(node, nsGkAtoms::body);
+}
+
+
+///////////////////////////////////////////////////////////////////////////
+// IsBreak: true if node an html break node
+bool 
+nsTextEditUtils::IsBreak(nsIDOMNode *node)
+{
+  return nsEditor::NodeIsType(node, nsGkAtoms::br);
+}
+
+
+///////////////////////////////////////////////////////////////////////////
+// IsMozBR: true if node an html br node with type = _moz
+//                  
+bool 
+nsTextEditUtils::IsMozBR(nsIDOMNode *node)
+{
+  NS_PRECONDITION(node, "null node passed to nsHTMLEditUtils::IsMozBR");
+  return IsBreak(node) && HasMozAttr(node);
+}
+
+
+bool
+nsTextEditUtils::IsMozBR(nsINode* aNode)
+{
+  MOZ_ASSERT(aNode);
+  return aNode->IsElement() &&
+         aNode->AsElement()->IsHTML(nsGkAtoms::br) &&
+         aNode->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
+                                         NS_LITERAL_STRING("_moz"),
+                                         eIgnoreCase);
+}
+
+///////////////////////////////////////////////////////////////////////////
+// HasMozAttr: true if node has type attribute = _moz
+//             (used to indicate the div's and br's we use in
+//              mail compose rules)
+//                  
+bool 
+nsTextEditUtils::HasMozAttr(nsIDOMNode *node)
+{
+  NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::HasMozAttr");
+  nsCOMPtr<nsIDOMElement> elem = do_QueryInterface(node);
+  if (elem)
+  {
+    nsAutoString typeAttrVal;
+    nsresult res = elem->GetAttribute(NS_LITERAL_STRING("type"), typeAttrVal);
+    if (NS_SUCCEEDED(res) && (typeAttrVal.LowerCaseEqualsLiteral("_moz")))
+      return true;
+  }
+  return false;
+}
+
+
+///////////////////////////////////////////////////////////////////////////
+// nsAutoEditInitRulesTrigger methods
+//
+nsAutoEditInitRulesTrigger::nsAutoEditInitRulesTrigger( nsPlaintextEditor *aEd, nsresult &aRes) : mEd(aEd), mRes(aRes)
+{
+    if (mEd) mEd->BeginEditorInit();
+}
+
+nsAutoEditInitRulesTrigger::~nsAutoEditInitRulesTrigger()
+{
+    if (mEd) mRes = mEd->EndEditorInit();
+}
+