diff -r 000000000000 -r 6474c204b198 content/media/TextTrackRegion.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/media/TextTrackRegion.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,66 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 et tw=78: */
+/* 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/TextTrackRegion.h"
+#include "mozilla/dom/VTTRegionBinding.h"
+
+namespace mozilla {
+namespace dom {
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(TextTrackRegion, mParent)
+NS_IMPL_CYCLE_COLLECTING_ADDREF(TextTrackRegion)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(TextTrackRegion)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(TextTrackRegion)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+JSObject*
+TextTrackRegion::WrapObject(JSContext* aCx)
+{
+  return VTTRegionBinding::Wrap(aCx, this);
+}
+
+already_AddRefed<TextTrackRegion>
+TextTrackRegion::Constructor(const GlobalObject& aGlobal, ErrorResult& aRv)
+{
+  nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aGlobal.GetAsSupports());
+  if (!window) {
+    aRv.Throw(NS_ERROR_FAILURE);
+    return nullptr;
+  }
+
+  nsRefPtr<TextTrackRegion> region = new TextTrackRegion(aGlobal.GetAsSupports());
+  return region.forget();
+}
+
+TextTrackRegion::TextTrackRegion(nsISupports* aGlobal)
+  : mParent(aGlobal)
+  , mWidth(100)
+  , mLines(3)
+  , mRegionAnchorX(0)
+  , mRegionAnchorY(100)
+  , mViewportAnchorX(0)
+  , mViewportAnchorY(100)
+{
+  SetIsDOMBinding();
+}
+
+void
+TextTrackRegion::CopyValues(TextTrackRegion& aRegion)
+{
+  mWidth = aRegion.Width();
+  mLines = aRegion.Lines();
+  mRegionAnchorX = aRegion.RegionAnchorX();
+  mRegionAnchorY = aRegion.RegionAnchorY();
+  mViewportAnchorX = aRegion.ViewportAnchorX();
+  mViewportAnchorY = aRegion.ViewportAnchorY();
+  mScroll = aRegion.Scroll();
+}
+
+} //namespace dom
+} //namespace mozilla
+