Blank UI for web component tests.

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 <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 33 matching lines @@
 #include "chrome/browser/ui/webui/profiler_ui.h"
 #include "chrome/browser/ui/webui/settings/md_settings_ui.h"
 #include "chrome/browser/ui/webui/signin/inline_login_ui.h"
 #include "chrome/browser/ui/webui/signin/profile_signin_confirmation_ui.h"
 #include "chrome/browser/ui/webui/signin/user_manager_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/translate_internals/translate_internals_ui.h"
 #include "chrome/browser/ui/webui/user_actions/user_actions_ui.h"
 #include "chrome/browser/ui/webui/version_ui.h"
+#include "chrome/browser/ui/webui/web_component_test_ui.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "components/dom_distiller/core/dom_distiller_constants.h"
 #include "components/dom_distiller/core/dom_distiller_service.h"
 #include "components/dom_distiller/core/url_constants.h"
 #include "components/dom_distiller/webui/dom_distiller_ui.h"
 #include "components/favicon/core/favicon_service.h"
 #include "components/favicon_base/favicon_util.h"
 #include "components/favicon_base/select_favicon_frames.h"
@@ skipping 285 matching lines @@
   if (url.host() == chrome::kChromeUISyncInternalsHost)
     return &NewWebUI<SyncInternalsUI>;
   if (url.host() == chrome::kChromeUISyncResourcesHost)
     return &NewWebUI<WebDialogUI>;
   if (url.host() == chrome::kChromeUITranslateInternalsHost)
     return &NewWebUI<TranslateInternalsUI>;
   if (url.host() == chrome::kChromeUIUserActionsHost)
     return &NewWebUI<UserActionsUI>;
   if (url.host() == chrome::kChromeUIVersionHost)
     return &NewWebUI<VersionUI>;
+  if (url.host() == chrome::kChromeUIWebComponentTestHost)

[James Hawkins, 2015/05/14 15:16:09]

How can we mitigate this being accessible outside of a testing environment?  I'm
concerned about the security implications of this infrastructure.

[michaelpg, 2015/05/14 19:06:31]

We could put it behind a flag, but I don't think that's warranted. This is a
blank Web UI so it can't do anything more than other Web UI can do.

In a follow-up CL we'll add mocha.js to this UI. So separately, we should figure
out a way to only include mocha when needed for testing. That discussion is
here:
https://codereview.chromium.org/1124873002/diff/80001/chrome/browser/browser_...

+    return &NewWebUI<WebComponentTestUI>;
 
   /****************************************************************************
    * OS Specific #defines
    ***************************************************************************/
 #if !defined(OS_ANDROID)
 #if !defined(OS_CHROMEOS)
   // AppLauncherPage is not needed on Android or ChromeOS.
   if (url.host() == chrome::kChromeUIAppLauncherPageHost &&
       profile && extensions::ExtensionSystem::Get(profile)->
           extension_service()) {
@@ skipping 387 matching lines @@
 #endif
 
   // Android doesn't use the plugins pages.
   if (page_url.host() == chrome::kChromeUIPluginsHost)
     return PluginsUI::GetFaviconResourceBytes(scale_factor);
 
 #endif
 
   return NULL;
 }