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

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

Index: chrome/browser/ui/webui/media/webrtc_internals_message_handler.cc
===================================================================
--- chrome/browser/ui/webui/media/webrtc_internals_message_handler.cc	(revision 179290)
+++ chrome/browser/ui/webui/media/webrtc_internals_message_handler.cc	(working copy)
@@ -1,45 +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.
-
-#include "chrome/browser/ui/webui/media/webrtc_internals_message_handler.h"
-
-#include "chrome/browser/media/chrome_webrtc_internals.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/browser/web_contents.h"
-#include "content/public/browser/web_ui.h"
-
-using content::BrowserThread;
-
-WebRTCInternalsMessageHandler::WebRTCInternalsMessageHandler() {
-  ChromeWebRTCInternals::GetInstance()->AddObserver(this);
-}
-
-WebRTCInternalsMessageHandler::~WebRTCInternalsMessageHandler() {
-  ChromeWebRTCInternals::GetInstance()->RemoveObserver(this);
-}
-
-void WebRTCInternalsMessageHandler::RegisterMessages() {
-  web_ui()->RegisterMessageCallback("getAllUpdates",
-      base::Bind(&WebRTCInternalsMessageHandler::OnGetAllUpdates,
-                 base::Unretained(this)));
-}
-
-void WebRTCInternalsMessageHandler::OnGetAllUpdates(
-    const base::ListValue* list) {
-  ChromeWebRTCInternals::GetInstance()->SendAllUpdates();
-}
-
-void WebRTCInternalsMessageHandler::OnUpdate(const std::string& command,
-                                            const base::Value* args) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  std::vector<const Value*> args_vector;
-  args_vector.push_back(args);
-  string16 update = content::WebUI::GetJavascriptCall(command, args_vector);
-
-  content::RenderViewHost* host =
-      web_ui()->GetWebContents()->GetRenderViewHost();
-  if (host)
-    host->ExecuteJavascriptInWebFrame(string16(), update);
-}