diff -r 000000000000 -r 6474c204b198 content/base/src/DOMQuad.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/base/src/DOMQuad.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,69 @@
+/* -*- 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_DOMQUAD_H_
+#define MOZILLA_DOMQUAD_H_
+
+#include "nsWrapperCache.h"
+#include "nsISupports.h"
+#include "nsCycleCollectionParticipant.h"
+#include "mozilla/Attributes.h"
+#include "nsCOMPtr.h"
+#include "nsAutoPtr.h"
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/ErrorResult.h"
+#include "Units.h"
+
+namespace mozilla {
+namespace dom {
+
+class DOMRectReadOnly;
+class DOMPoint;
+struct DOMPointInit;
+
+class DOMQuad MOZ_FINAL : public nsWrapperCache
+{
+public:
+  DOMQuad(nsISupports* aParent, CSSPoint aPoints[4]);
+  DOMQuad(nsISupports* aParent);
+  ~DOMQuad();
+
+  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(DOMQuad)
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(DOMQuad)
+
+  nsISupports* GetParentObject() const { return mParent; }
+  virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
+
+  static already_AddRefed<DOMQuad>
+  Constructor(const GlobalObject& aGlobal,
+              const DOMPointInit& aP1,
+              const DOMPointInit& aP2,
+              const DOMPointInit& aP3,
+              const DOMPointInit& aP4,
+              ErrorResult& aRV);
+  static already_AddRefed<DOMQuad>
+  Constructor(const GlobalObject& aGlobal, const DOMRectReadOnly& aRect,
+              ErrorResult& aRV);
+
+  DOMRectReadOnly* Bounds() const;
+  DOMPoint* P1() const { return mPoints[0]; }
+  DOMPoint* P2() const { return mPoints[1]; }
+  DOMPoint* P3() const { return mPoints[2]; }
+  DOMPoint* P4() const { return mPoints[3]; }
+
+  DOMPoint* Point(uint32_t aIndex) { return mPoints[aIndex]; }
+
+protected:
+  class QuadBounds;
+
+  nsCOMPtr<nsISupports> mParent;
+  nsRefPtr<DOMPoint> mPoints[4];
+  mutable nsRefPtr<QuadBounds> mBounds; // allocated lazily
+};
+
+}
+}
+
+#endif /*MOZILLA_DOMRECT_H_*/