diff -r 000000000000 -r 6474c204b198 dom/xbl/nsXBLResourceLoader.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/xbl/nsXBLResourceLoader.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,67 @@
+/* -*- 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 nsXBLResourceLoader_h
+#define nsXBLResourceLoader_h
+
+#include "mozilla/Attributes.h"
+#include "nsCOMPtr.h"
+#include "nsICSSLoaderObserver.h"
+#include "nsCOMArray.h"
+#include "nsCycleCollectionParticipant.h"
+
+class nsIContent;
+class nsIAtom;
+class nsXBLPrototypeResources;
+class nsXBLPrototypeBinding;
+struct nsXBLResource;
+class nsIObjectOutputStream;
+
+// *********************************************************************/
+// The XBLResourceLoader class
+
+class nsXBLResourceLoader : public nsICSSLoaderObserver
+{
+public:
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_CLASS(nsXBLResourceLoader)
+
+  // nsICSSLoaderObserver
+  NS_IMETHOD StyleSheetLoaded(nsCSSStyleSheet* aSheet, bool aWasAlternate,
+                              nsresult aStatus) MOZ_OVERRIDE;
+
+  void LoadResources(bool* aResult);
+  void AddResource(nsIAtom* aResourceType, const nsAString& aSrc);
+  void AddResourceListener(nsIContent* aElement);
+
+  nsXBLResourceLoader(nsXBLPrototypeBinding* aBinding,
+                      nsXBLPrototypeResources* aResources);
+  virtual ~nsXBLResourceLoader();
+
+  void NotifyBoundElements();
+
+  nsresult Write(nsIObjectOutputStream* aStream);
+
+// MEMBER VARIABLES
+  nsXBLPrototypeBinding* mBinding; // A pointer back to our binding.
+  nsXBLPrototypeResources* mResources; // A pointer back to our resources
+                                       // information.  May be null if the
+                                       // resources have already been
+                                       // destroyed.
+  
+  nsXBLResource* mResourceList; // The list of resources we need to load.
+  nsXBLResource* mLastResource;
+
+  bool mLoadingResources;
+  // We need mInLoadResourcesFunc because we do a mixture of sync and
+  // async loads.
+  bool mInLoadResourcesFunc;
+  int16_t mPendingSheets; // The number of stylesheets that have yet to load.
+
+  // Bound elements that are waiting on the stylesheets and scripts.
+  nsCOMArray<nsIContent> mBoundElements;
+};
+
+#endif