diff -r 000000000000 -r 6474c204b198 content/base/src/DocumentType.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/base/src/DocumentType.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,150 @@
+/* -*- 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/. */
+
+/*
+ * Implementation of DOM Core's nsIDOMDocumentType node.
+ */
+
+#include "mozilla/dom/DocumentType.h"
+#include "nsGkAtoms.h"
+#include "nsCOMPtr.h"
+#include "nsDOMString.h"
+#include "nsNodeInfoManager.h"
+#include "nsIXPConnect.h"
+#include "xpcpublic.h"
+#include "nsWrapperCacheInlines.h"
+#include "mozilla/dom/DocumentTypeBinding.h"
+
+nsresult
+NS_NewDOMDocumentType(nsIDOMDocumentType** aDocType,
+                      nsNodeInfoManager *aNodeInfoManager,
+                      nsIAtom *aName,
+                      const nsAString& aPublicId,
+                      const nsAString& aSystemId,
+                      const nsAString& aInternalSubset)
+{
+  NS_ENSURE_ARG_POINTER(aDocType);
+  mozilla::ErrorResult rv;
+  *aDocType = NS_NewDOMDocumentType(aNodeInfoManager, aName, aPublicId,
+                                    aSystemId, aInternalSubset, rv).take();
+  return rv.ErrorCode();
+}
+
+already_AddRefed<mozilla::dom::DocumentType>
+NS_NewDOMDocumentType(nsNodeInfoManager* aNodeInfoManager,
+                      nsIAtom *aName,
+                      const nsAString& aPublicId,
+                      const nsAString& aSystemId,
+                      const nsAString& aInternalSubset,
+                      mozilla::ErrorResult& rv)
+{
+  if (!aName) {
+    rv.Throw(NS_ERROR_INVALID_POINTER);
+    return nullptr;
+  }
+
+  already_AddRefed<nsINodeInfo> ni =
+    aNodeInfoManager->GetNodeInfo(nsGkAtoms::documentTypeNodeName, nullptr,
+                                  kNameSpaceID_None,
+                                  nsIDOMNode::DOCUMENT_TYPE_NODE,
+                                  aName);
+
+  nsRefPtr<mozilla::dom::DocumentType> docType =
+    new mozilla::dom::DocumentType(ni, aPublicId, aSystemId, aInternalSubset);
+  return docType.forget();
+}
+
+namespace mozilla {
+namespace dom {
+
+JSObject*
+DocumentType::WrapNode(JSContext *cx)
+{
+  return DocumentTypeBinding::Wrap(cx, this);
+}
+
+DocumentType::DocumentType(already_AddRefed<nsINodeInfo>& aNodeInfo,
+                           const nsAString& aPublicId,
+                           const nsAString& aSystemId,
+                           const nsAString& aInternalSubset) :
+  DocumentTypeForward(aNodeInfo),
+  mPublicId(aPublicId),
+  mSystemId(aSystemId),
+  mInternalSubset(aInternalSubset)
+{
+  NS_ABORT_IF_FALSE(mNodeInfo->NodeType() == nsIDOMNode::DOCUMENT_TYPE_NODE,
+                    "Bad NodeType in aNodeInfo");
+}
+
+DocumentType::~DocumentType()
+{
+}
+
+NS_IMPL_ISUPPORTS_INHERITED(DocumentType, nsGenericDOMDataNode, nsIDOMNode,
+                            nsIDOMDocumentType)
+
+bool
+DocumentType::IsNodeOfType(uint32_t aFlags) const
+{
+  // Don't claim to be eDATA_NODE since we're just inheriting
+  // nsGenericDOMDataNode for convinience. Doctypes aren't really
+  // data nodes (they have a null .nodeValue and don't implement
+  // nsIDOMCharacterData)
+  return !(aFlags & ~eCONTENT);
+}
+
+const nsTextFragment*
+DocumentType::GetText()
+{
+  return nullptr;
+}
+
+NS_IMETHODIMP    
+DocumentType::GetName(nsAString& aName)
+{
+  aName = NodeName();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+DocumentType::GetPublicId(nsAString& aPublicId)
+{
+  aPublicId = mPublicId;
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+DocumentType::GetSystemId(nsAString& aSystemId)
+{
+  aSystemId = mSystemId;
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+DocumentType::GetInternalSubset(nsAString& aInternalSubset)
+{
+  aInternalSubset = mInternalSubset;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+DocumentType::MozRemove()
+{
+  Remove();
+  return NS_OK;
+}
+
+nsGenericDOMDataNode*
+DocumentType::CloneDataNode(nsINodeInfo *aNodeInfo, bool aCloneText) const
+{
+  already_AddRefed<nsINodeInfo> ni = nsCOMPtr<nsINodeInfo>(aNodeInfo).forget();
+  return new DocumentType(ni, mPublicId, mSystemId, mInternalSubset);
+}
+
+} // namespace dom
+} // namespace mozilla
+