First try at a user management screen for the desktop

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/message_loop_proxy.h"
@@ skipping 26 matching lines @@
 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
 #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/quota_internals_ui.h"
 #include "chrome/browser/ui/webui/signin/profile_signin_confirmation_ui.h"
+#include "chrome/browser/ui/webui/signin/user_chooser_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/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"
@@ skipping 321 matching lines @@
     // use the NTP WebUI. We don't want to return NULL if the sync promo page
     // is disabled because the page can be disabled mid-flight (for example,
     // if sync login finishes).
     if (SyncPromoUI::ShouldShowSyncPromo(profile))
       return &NewWebUI<SyncPromoUI>;
     else
       return &NewWebUI<NewTabUI>;
   }
 #endif
 
+#if !defined(OS_CHROMEOS) && !defined(OS_ANDROID) && !defined(OS_IOS)
+  if (url.host() == chrome::kChromeUIUserChooserHost)
+    return &NewWebUI<UserChooserUI>;
+#endif
+
   if (url.host() == chrome::kChromeUIChromeURLsHost ||
       url.host() == chrome::kChromeUICreditsHost ||
       url.host() == chrome::kChromeUIDNSHost ||
       url.host() == chrome::kChromeUIMemoryHost ||
       url.host() == chrome::kChromeUIMemoryRedirectHost ||
       url.host() == chrome::kChromeUIStatsHost ||
       url.host() == chrome::kChromeUITermsHost
 #if defined(OS_LINUX) || defined(OS_OPENBSD)
       || url.host() == chrome::kChromeUILinuxProxyConfigHost
       || url.host() == chrome::kChromeUISandboxHost
@@ skipping 180 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;
 }