Allow <audio> to work in extension

chrome/renderer/renderer_glue.cc

Index: chrome/renderer/renderer_glue.cc
diff --git a/chrome/renderer/renderer_glue.cc b/chrome/renderer/renderer_glue.cc
index c9920109ddb1d2b51113d580ca16075f7efb3bda..be06db42668ab02565de6939179c2cf3bb8cc1ae 100644
--- a/chrome/renderer/renderer_glue.cc
+++ b/chrome/renderer/renderer_glue.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -212,6 +212,16 @@ void GetPlugins(bool refresh, std::vector<WebPluginInfo>* plugins) {
   RenderThread::current()->Send(new ViewHostMsg_GetPlugins(refresh, plugins));
 }
 
+bool IsProtocolSupportedForMedia(const GURL& url) {
+  // If new protocol is to be added here, we need to make sure the response is
+  // validated accordingly in the media engine.
+  if (url.SchemeIsFile() || url.SchemeIs(chrome::kHttpScheme) ||
+      url.SchemeIs(chrome::kHttpsScheme) ||
+      url.SchemeIs(chrome::kExtensionScheme))
+    return true;
+  return false;
+}
+
 // static factory function
 ResourceLoaderBridge* ResourceLoaderBridge::Create(
     const std::string& method,