Launch "Update Chrome" menu item

chrome/browser/flag_descriptions.h

 // Copyright 2017 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.
 
 #ifndef CHROME_BROWSER_FLAG_DESCRIPTIONS_H_
 #define CHROME_BROWSER_FLAG_DESCRIPTIONS_H_
 
 // Includes needed for macros allowing conditional compilation of some strings.
 #include "build/build_config.h"
 #include "build/buildflag.h"
@@ skipping 2385 matching lines @@
 //  Data Use
 
 //  Update Menu Item Flags
 
 // Name of the flag to force show the update menu item.
 extern const char kUpdateMenuItemName[];
 
 // Description of the flag to force show the update menu item.
 extern const char kUpdateMenuItemDescription[];
 
-// Name of the flag to show a summary below the update menu item.
-extern const char kUpdateMenuItemSummaryName[];
+// Description of the flag to show a custom summary below the update menu item.
+extern const char kUpdateMenuItemCustomSummaryDescription[];
 
-// Description of the flag to show a summary below the update menu item.
-extern const char kUpdateMenuItemSummaryDescription[];
-
-// Option to not show a summary for the update menu item.
-extern const char kUpdateMenuItemNoSummary[];
-
-// Option to show the default summary for the update menu item.
-extern const char kUpdateMenuItemDefaultSummary[];
-
-// Option to show a summary for the update menu item prompting users to 'get the
-// latest features'.
-extern const char kUpdateMenuItemNewFeaturesSummary[];
-
-// Option to show a custom summary for the update menu item.
-extern const char kUpdateMenuItemCustomSummary[];
+// Name of the flag to show a custom summary below the update menu item.
+extern const char kUpdateMenuItemCustomSummaryName[];
 
 // Name of the flag to force show the update menu badge.
 extern const char kUpdateMenuBadgeName[];
 
 // Description of the flag to force show the update menu badge.
 extern const char kUpdateMenuBadgeDescription[];
 
 // Name of the flag to set a market URL for testing the update menu item.
 extern const char kSetMarketUrlForTestingName[];
 
@@ skipping 830 matching lines @@
 extern const char kEnableCopylessPasteName[];
 
 // Description of the flag that enables Copyless Paste.
 extern const char kEnableCopylessPasteDescription[];
 
 #endif  // defined(OS_ANDROID)
 
 }  // namespace flag_descriptions
 
 #endif  // CHROME_BROWSER_FLAG_DESCRIPTIONS_H_