Add a WebUIControllerFactory in content and move chrome://webrtc-internals to content.

chrome/browser/ui/webui/media/webrtc_internals_message_handler.h

Index: chrome/browser/ui/webui/media/webrtc_internals_message_handler.h
===================================================================
--- chrome/browser/ui/webui/media/webrtc_internals_message_handler.h	(revision 179290)
+++ chrome/browser/ui/webui/media/webrtc_internals_message_handler.h	(working copy)
@@ -1,38 +0,0 @@
-// Copyright (c) 2013 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.
-
-#ifndef CHROME_BROWSER_UI_WEBUI_MEDIA_WEBRTC_INTERNALS_MESSAGE_HANDLER_H_
-#define CHROME_BROWSER_UI_WEBUI_MEDIA_WEBRTC_INTERNALS_MESSAGE_HANDLER_H_
-
-#include "base/memory/ref_counted.h"
-#include "chrome/browser/media/webrtc_internals_ui_observer.h"
-#include "content/public/browser/web_ui_message_handler.h"
-
-namespace base {
-class ListValue;
-}  // namespace base
-
-// This class handles messages to and from WebRTCInternalsUI.
-// It delegates all its work to WebRTCInternalsProxy on the IO thread.
-class WebRTCInternalsMessageHandler : public content::WebUIMessageHandler,
-                                      public WebRTCInternalsUIObserver{
- public:
-  WebRTCInternalsMessageHandler();
-  virtual ~WebRTCInternalsMessageHandler();
-
-  // WebUIMessageHandler implementation.
-  virtual void RegisterMessages() OVERRIDE;
-
-  // WebRTCInternalsUIObserver override.
-  virtual void OnUpdate(const std::string& command,
-                        const base::Value* args) OVERRIDE;
-
-  // Javascript message handler.
-  void OnGetAllUpdates(const base::ListValue* list);
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(WebRTCInternalsMessageHandler);
-};
-
-#endif  // CHROME_BROWSER_UI_WEBUI_MEDIA_WEBRTC_INTERNALS_MESSAGE_HANDLER_H_