diff --git a/content/svg/content/src/Makefile.in b/content/svg/content/src/Makefile.in
index cababe8b1d02..7740ba24f97e 100644
--- a/content/svg/content/src/Makefile.in
+++ b/content/svg/content/src/Makefile.in
@@ -63,7 +63,6 @@ CPPSRCS		= \
 		nsSVGLineElement.cpp \
 		nsSVGMarkerElement.cpp \
 		nsSVGMaskElement.cpp \
-		nsSVGMetadataElement.cpp \
 		nsSVGNumber2.cpp \
 		nsSVGNumberPair.cpp \
 		nsSVGPathDataParser.cpp \
@@ -122,6 +121,7 @@ CPPSRCS		= \
 		SVGDescElement.cpp \
 		SVGIntegerPairSMILType.cpp \
 		SVGLengthListSMILType.cpp \
+		SVGMetadataElement.cpp \
 		SVGMotionSMILType.cpp \
 		SVGMotionSMILAttr.cpp \
 		SVGMotionSMILAnimationFunction.cpp \
@@ -155,6 +155,7 @@ EXPORTS_mozilla/dom = \
 	SVGAnimatedAngle.h \
 	SVGAnimatedBoolean.h \
 	SVGDescElement.h \
+	SVGMetadataElement.h \
 	SVGStopElement.h \
 	SVGStyleElement.h \
 	SVGTitleElement.h \
diff --git a/content/svg/content/src/SVGMetadataElement.cpp b/content/svg/content/src/SVGMetadataElement.cpp
new file mode 100644
index 000000000000..036113b0468c
--- /dev/null
+++ b/content/svg/content/src/SVGMetadataElement.cpp
@@ -0,0 +1,59 @@
+/* -*- 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/dom/SVGMetadataElement.h"
+#include "mozilla/dom/SVGMetadataElementBinding.h"
+
+DOMCI_NODE_DATA(SVGMetadataElement, mozilla::dom::SVGMetadataElement)
+
+NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(Metadata)
+
+namespace mozilla {
+namespace dom {
+
+JSObject*
+SVGMetadataElement::WrapNode(JSContext *aCx, JSObject *aScope, bool *aTriedToWrap)
+{
+  return SVGMetadataElementBinding::Wrap(aCx, aScope, this, aTriedToWrap);
+}
+
+//----------------------------------------------------------------------
+// nsISupports methods
+
+NS_IMPL_ADDREF_INHERITED(SVGMetadataElement, SVGMetadataElementBase)
+NS_IMPL_RELEASE_INHERITED(SVGMetadataElement, SVGMetadataElementBase)
+
+NS_INTERFACE_TABLE_HEAD(SVGMetadataElement)
+  NS_NODE_INTERFACE_TABLE4(SVGMetadataElement, nsIDOMNode, nsIDOMElement,
+                           nsIDOMSVGElement, nsIDOMSVGMetadataElement)
+  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(SVGMetadataElement)
+NS_INTERFACE_MAP_END_INHERITING(SVGMetadataElementBase)
+
+
+//----------------------------------------------------------------------
+// Implementation
+
+SVGMetadataElement::SVGMetadataElement(already_AddRefed<nsINodeInfo> aNodeInfo)
+  : SVGMetadataElementBase(aNodeInfo)
+{
+  SetIsDOMBinding();
+}
+
+
+nsresult
+SVGMetadataElement::Init()
+{
+  return NS_OK;
+}
+
+
+//----------------------------------------------------------------------
+// nsIDOMNode methods
+
+NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGMetadataElement)
+
+} // namespace dom
+} // namespace mozilla
+
diff --git a/content/svg/content/src/SVGMetadataElement.h b/content/svg/content/src/SVGMetadataElement.h
new file mode 100644
index 000000000000..7a6d1baf5451
--- /dev/null
+++ b/content/svg/content/src/SVGMetadataElement.h
@@ -0,0 +1,52 @@
+/* -*- 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/. */
+
+#ifndef mozilla_dom_SVGMetadataElement_h
+#define mozilla_dom_SVGMetadataElement_h
+
+#include "nsSVGElement.h"
+#include "nsIDOMSVGMetadataElement.h"
+
+nsresult NS_NewSVGMetadataElement(nsIContent **aResult,
+                                  already_AddRefed<nsINodeInfo> aNodeInfo);
+
+typedef nsSVGElement SVGMetadataElementBase;
+
+namespace mozilla {
+namespace dom {
+
+class SVGMetadataElement MOZ_FINAL : public SVGMetadataElementBase,
+                                     public nsIDOMSVGMetadataElement
+{
+protected:
+  friend nsresult (::NS_NewSVGMetadataElement(nsIContent **aResult,
+                                              already_AddRefed<nsINodeInfo> aNodeInfo));
+  SVGMetadataElement(already_AddRefed<nsINodeInfo> aNodeInfo);
+
+  virtual JSObject* WrapNode(JSContext *aCx, JSObject *aScope, bool *aTriedToWrap) MOZ_OVERRIDE;
+  nsresult Init();
+
+public:
+  // interfaces:
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_NSIDOMSVGMETADATAELEMENT
+
+  // xxx I wish we could use virtual inheritance
+  NS_FORWARD_NSIDOMNODE_TO_NSINODE
+  NS_FORWARD_NSIDOMELEMENT_TO_GENERIC
+  NS_FORWARD_NSIDOMSVGELEMENT(nsSVGElement::)
+
+  virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;
+
+  virtual nsXPCClassInfo* GetClassInfo();
+
+  virtual nsIDOMNode* AsDOMNode() { return this; }
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_SVGMetadataElement_h
diff --git a/content/svg/content/src/nsSVGMetadataElement.cpp b/content/svg/content/src/nsSVGMetadataElement.cpp
deleted file mode 100644
index af52ffae835c..000000000000
--- a/content/svg/content/src/nsSVGMetadataElement.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-/* -*- 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 "nsSVGElement.h"
-#include "nsIDOMSVGMetadataElement.h"
-
-typedef nsSVGElement nsSVGMetadataElementBase;
-
-class nsSVGMetadataElement : public nsSVGMetadataElementBase,
-                             public nsIDOMSVGMetadataElement
-{
-protected:
-  friend nsresult NS_NewSVGMetadataElement(nsIContent **aResult,
-                                           already_AddRefed<nsINodeInfo> aNodeInfo);
-  nsSVGMetadataElement(already_AddRefed<nsINodeInfo> aNodeInfo);
-  nsresult Init();
-
-public:
-  // interfaces:
-
-  NS_DECL_ISUPPORTS_INHERITED
-  NS_DECL_NSIDOMSVGMETADATAELEMENT
-
-  // xxx I wish we could use virtual inheritance
-  NS_FORWARD_NSIDOMNODE_TO_NSINODE
-  NS_FORWARD_NSIDOMELEMENT_TO_GENERIC
-  NS_FORWARD_NSIDOMSVGELEMENT(nsSVGElement::)
-
-  virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;
-
-  virtual nsXPCClassInfo* GetClassInfo();
-
-  virtual nsIDOMNode* AsDOMNode() { return this; }
-};
-
-NS_IMPL_NS_NEW_SVG_ELEMENT(Metadata)
-
-
-//----------------------------------------------------------------------
-// nsISupports methods
-
-NS_IMPL_ADDREF_INHERITED(nsSVGMetadataElement, nsSVGMetadataElementBase)
-NS_IMPL_RELEASE_INHERITED(nsSVGMetadataElement, nsSVGMetadataElementBase)
-
-DOMCI_NODE_DATA(SVGMetadataElement, nsSVGMetadataElement)
-
-NS_INTERFACE_TABLE_HEAD(nsSVGMetadataElement)
-  NS_NODE_INTERFACE_TABLE4(nsSVGMetadataElement, nsIDOMNode, nsIDOMElement,
-                           nsIDOMSVGElement, nsIDOMSVGMetadataElement)
-  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(SVGMetadataElement)
-NS_INTERFACE_MAP_END_INHERITING(nsSVGMetadataElementBase)
-
-
-//----------------------------------------------------------------------
-// Implementation
-
-nsSVGMetadataElement::nsSVGMetadataElement(already_AddRefed<nsINodeInfo> aNodeInfo)
-  : nsSVGMetadataElementBase(aNodeInfo)
-{
-}
-
-
-nsresult
-nsSVGMetadataElement::Init()
-{
-  return NS_OK;
-}
-
-
-//----------------------------------------------------------------------
-// nsIDOMNode methods
-
-NS_IMPL_ELEMENT_CLONE_WITH_INIT(nsSVGMetadataElement)
diff --git a/dom/webidl/SVGMetadataElement.webidl b/dom/webidl/SVGMetadataElement.webidl
new file mode 100644
index 000000000000..1c404f91f2d0
--- /dev/null
+++ b/dom/webidl/SVGMetadataElement.webidl
@@ -0,0 +1,15 @@
+/* -*- Mode: IDL; 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/.
+ *
+ * The origin of this IDL file is
+ * http://www.w3.org/TR/SVG2/
+ *
+ * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
+ * liability, trademark and document use rules apply.
+ */
+
+interface SVGMetadataElement : SVGElement {
+};
+
diff --git a/dom/webidl/WebIDL.mk b/dom/webidl/WebIDL.mk
index 97aa4aea4265..a21f2f079a46 100644
--- a/dom/webidl/WebIDL.mk
+++ b/dom/webidl/WebIDL.mk
@@ -100,6 +100,7 @@ webidl_files = \
   SVGElement.webidl \
   SVGLengthList.webidl \
   SVGMatrix.webidl \
+  SVGMetadataElement.webidl \
   SVGNumberList.webidl \
   SVGPathSeg.webidl \
   SVGPathSegList.webidl \