diff -r 000000000000 -r 6474c204b198 content/base/src/nsSyncLoadService.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/base/src/nsSyncLoadService.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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/. */
+
+/*
+ * A service that provides methods for synchronously loading a DOM in various ways.
+ */
+
+#ifndef nsSyncLoadService_h__
+#define nsSyncLoadService_h__
+
+#include "nscore.h"
+
+class nsIInputStream;
+class nsILoadGroup;
+class nsIStreamListener;
+class nsIURI;
+class nsIPrincipal;
+class nsIDOMDocument;
+class nsIChannel;
+
+class nsSyncLoadService
+{
+public:
+    /**
+     * Synchronously load the document from the specified URI.
+     *
+     * @param aURI URI to load the document from.
+     * @param aLoaderPrincipal Principal of loading document. For security
+     *                         checks and referrer header. May be null if no
+     *                         security checks should be done.
+     * @param aLoadGroup The loadgroup to use for loading the document.
+     * @param aForceToXML Whether to parse the document as XML, regardless of
+     *                    content type.
+     * @param aResult [out] The document loaded from the URI.
+     */
+    static nsresult LoadDocument(nsIURI *aURI, nsIPrincipal *aLoaderPrincipal,
+                                 nsILoadGroup *aLoadGroup, bool aForceToXML,
+                                 nsIDOMDocument** aResult);
+
+    /**
+     * Read input stream aIn in chunks and deliver synchronously to aListener.
+     *
+     * @param aIn The stream to be read.
+     * @param aListener The listener that will receive
+     *                  OnStartRequest/OnDataAvailable/OnStopRequest
+     *                  notifications.
+     * @param aChannel The channel that aIn was opened from.
+     */
+    static nsresult PushSyncStreamToListener(nsIInputStream* aIn,
+                                             nsIStreamListener* aListener,
+                                             nsIChannel* aChannel);
+};
+
+#endif // nsSyncLoadService_h__