Revert 180055: Very likely caused http://crbug.com/173885

content/browser/webui/content_web_ui_controller_factory.cc

 // 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 "content/browser/webui/content_web_ui_controller_factory.h"
 
 #include "content/browser/gpu/gpu_internals_ui.h"
 #include "content/browser/media/media_internals_ui.h"
 #include "content/browser/media/webrtc_internals_ui.h"
-#include "content/browser/tracing/tracing_ui.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui.h"
 #include "content/public/common/url_constants.h"
 
 namespace content {
 
 WebUI::TypeID ContentWebUIControllerFactory::GetWebUIType(
       BrowserContext* browser_context, const GURL& url) const {
   if (url.host() == chrome::kChromeUIWebRTCInternalsHost ||
-#if !defined(OS_ANDROID)
-      url.host() == chrome::kChromeUITracingHost ||
-#endif
       url.host() == chrome::kChromeUIGpuHost ||
       url.host() == chrome::kChromeUIMediaInternalsHost) {
     return const_cast<ContentWebUIControllerFactory*>(this);
   }
   return WebUI::kNoWebUI;
 }
 
 bool ContentWebUIControllerFactory::UseWebUIForURL(
     BrowserContext* browser_context, const GURL& url) const {
   return GetWebUIType(browser_context, url) != WebUI::kNoWebUI;
 }
 
 bool ContentWebUIControllerFactory::UseWebUIBindingsForURL(
     BrowserContext* browser_context, const GURL& url) const {
   return UseWebUIForURL(browser_context, url);
 }
 
 WebUIController* ContentWebUIControllerFactory::CreateWebUIControllerForURL(
     WebUI* web_ui, const GURL& url) const {
   if (url.host() == chrome::kChromeUIWebRTCInternalsHost)
     return new WebRTCInternalsUI(web_ui);
   if (url.host() == chrome::kChromeUIGpuHost)
     return new GpuInternalsUI(web_ui);
   if (url.host() == chrome::kChromeUIMediaInternalsHost)
     return new MediaInternalsUI(web_ui);
-#if !defined(OS_ANDROID)
-  if (url.host() == chrome::kChromeUITracingHost)
-    return new TracingUI(web_ui);
-#endif
 
   return NULL;
 }
 
 // static
 ContentWebUIControllerFactory* ContentWebUIControllerFactory::GetInstance() {
   return Singleton<ContentWebUIControllerFactory>::get();
 }
 
 ContentWebUIControllerFactory::ContentWebUIControllerFactory() {
 }
 
 ContentWebUIControllerFactory::~ContentWebUIControllerFactory() {
 }
 
 }  // namespace content