Revamped signin/sync error surfacing on desktop user menu

chrome/common/url_constants.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/common/url_constants.h"
 
 #include <algorithm>
 
 #include "base/macros.h"
 #include "build/build_config.h"
@@ skipping 333 matching lines @@
 const char kHandlerSettingsSubPage[] = "handlers";
 const char kImportDataSubPage[] = "importData";
 const char kLanguageOptionsSubPage[] = "languages";
 const char kManageProfileSubPage[] = "manageProfile";
 const char kPasswordManagerSubPage[] = "passwords";
 const char kPowerOptionsSubPage[] = "power-overlay";
 const char kResetProfileSettingsSubPage[] = "resetProfileSettings";
 const char kSearchEnginesSubPage[] = "searchEngines";
 const char kSearchSubPage[] = "search";
 const char kSearchUsersSubPage[] = "search#Users";
+const char kSignOutSubPage[] = "signOut";
 const char kSyncSetupSubPage[] = "syncSetup";
 const char kTriggeredResetProfileSettingsSubPage[] =
     "triggeredResetProfileSettings";
 #if defined(OS_CHROMEOS)
 const char kInternetOptionsSubPage[] = "internet";
 const char kChangeProfilePictureSubPage[] = "changePicture";
 #endif
 
 // Extension sub pages.
 const char kExtensionConfigureCommandsSubPage[] = "configureCommands";
@@ skipping 406 matching lines @@
     "https://support.google.com/chrome?p=bluetooth";
 
 const char kChooserUsbOverviewURL[] =
     "https://support.google.com/chrome?p=webusb";
 
 #if defined(OS_CHROMEOS)
 const char kEolNotificationURL[] = "https://www.google.com/chromebook/older/";
 #endif
 
 }  // namespace chrome