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

chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc

 // Copyright (c) 2012 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/chrome_web_ui_controller_factory.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/message_loop_proxy.h"
@@ skipping 27 matching lines @@
 #include "chrome/browser/ui/webui/omnibox/omnibox_ui.h"
 #include "chrome/browser/ui/webui/options/options_ui.h"
 #include "chrome/browser/ui/webui/performance_monitor/performance_monitor_ui.h"
 #include "chrome/browser/ui/webui/plugins_ui.h"
 #include "chrome/browser/ui/webui/predictors/predictors_ui.h"
 #include "chrome/browser/ui/webui/print_preview/print_preview_ui.h"
 #include "chrome/browser/ui/webui/profiler_ui.h"
 #include "chrome/browser/ui/webui/quota_internals_ui.h"
 #include "chrome/browser/ui/webui/signin_internals_ui.h"
 #include "chrome/browser/ui/webui/sync_internals_ui.h"
+#include "chrome/browser/ui/webui/tracing_ui.h"
 #include "chrome/browser/ui/webui/user_actions/user_actions_ui.h"
 #include "chrome/browser/ui/webui/version_ui.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/extensions/feature_switch.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui.h"
 #include "content/public/common/content_client.h"
@@ skipping 219 matching lines @@
   if (url.host() == chrome::kChromeUIPerformanceMonitorHost)
     return &NewWebUI<performance_monitor::PerformanceMonitorUI>;
   // Android does not support plugins for now.
   if (url.host() == chrome::kChromeUIPluginsHost)
     return &NewWebUI<PluginsUI>;
   // Settings are implemented with native UI elements on Android.
   if (url.host() == chrome::kChromeUISettingsFrameHost)
     return &NewWebUI<options::OptionsUI>;
   if (url.host() == chrome::kChromeUISuggestionsInternalsHost)
     return &NewWebUI<SuggestionsInternalsUI>;
+  if (url.host() == chrome::kChromeUITracingHost)
+    return &NewWebUI<TracingUI>;
   // Uber frame is not used on Android.
   if (url.host() == chrome::kChromeUIUberFrameHost)
     return &NewWebUI<UberFrameUI>;
   // Uber page is not used on Android.
   if (url.host() == chrome::kChromeUIUberHost)
     return &NewWebUI<UberUI>;
 #endif
 #if defined(OS_WIN)
   if (url.host() == chrome::kChromeUIConflictsHost)
     return &NewWebUI<ConflictsUI>;
@@ skipping 259 matching lines @@
   if (page_url.host() == chrome::kChromeUISettingsFrameHost)
     return options::OptionsUI::GetFaviconResourceBytes(scale_factor);
 
   // Android doesn't use the plugins pages.
   if (page_url.host() == chrome::kChromeUIPluginsHost)
     return PluginsUI::GetFaviconResourceBytes(scale_factor);
 #endif
 
   return NULL;
 }