[Autofill] Add support for signin promo on Android

chrome/chrome_browser.gypi

 # Copyright 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.
 
 {
   'variables': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 940 matching lines @@
       'browser/android/shortcut_info.cc',
       'browser/android/shortcut_info.h',
       'browser/android/signin/account_management_screen_helper.cc',
       'browser/android/signin/account_management_screen_helper.h',
       'browser/android/signin/account_tracker_service_android.cc',
       'browser/android/signin/account_tracker_service_android.h',
       'browser/android/signin/signin_investigator_android.cc',
       'browser/android/signin/signin_investigator_android.h',
       'browser/android/signin/signin_manager_android.cc',
       'browser/android/signin/signin_manager_android.h',
+      'browser/android/signin/signin_promo_util.cc',
+      'browser/android/signin/signin_promo_util.h',
       'browser/android/tab_android.cc',
       'browser/android/tab_android.h',
       'browser/android/tab_state.cc',
       'browser/android/tab_state.h',
       'browser/android/tab_web_contents_delegate_android.cc',
       'browser/android/tab_web_contents_delegate_android.h',
       'browser/android/thumbnail/thumbnail.cc',
       'browser/android/thumbnail/thumbnail.h',
       'browser/android/thumbnail/thumbnail_cache.cc',
       'browser/android/thumbnail/thumbnail_cache.h',
@@ skipping 1075 matching lines @@
       'android/java/src/org/chromium/chrome/browser/ShortcutHelper.java',
       'android/java/src/org/chromium/chrome/browser/SSLClientCertificateRequest.java',
       'android/java/src/org/chromium/chrome/browser/search_engines/TemplateUrlService.java',
       'android/java/src/org/chromium/chrome/browser/sessions/SessionTabHelper.java',
       'android/java/src/org/chromium/chrome/browser/ServiceTabLauncher.java',
       'android/java/src/org/chromium/chrome/browser/signin/AccountManagementScreenHelper.java',
       'android/java/src/org/chromium/chrome/browser/signin/AccountTrackerService.java',
       'android/java/src/org/chromium/chrome/browser/signin/OAuth2TokenService.java',
       'android/java/src/org/chromium/chrome/browser/signin/SigninInvestigator.java',
       'android/java/src/org/chromium/chrome/browser/signin/SigninManager.java',
+      'android/java/src/org/chromium/chrome/browser/signin/SigninPromoUtil.java',
       'android/java/src/org/chromium/chrome/browser/snackbar/smartlockautosignin/AutoSigninSnackbarController.java',
       'android/java/src/org/chromium/chrome/browser/spellchecker/SpellCheckerSessionBridge.java',
       'android/java/src/org/chromium/chrome/browser/superviseduser/SupervisedUserContentProvider.java',
       'android/java/src/org/chromium/chrome/browser/sync/ProfileSyncService.java',
       'android/java/src/org/chromium/chrome/browser/sync/SyncSessionsMetrics.java',
       'android/java/src/org/chromium/chrome/browser/tab/Tab.java',
       'android/java/src/org/chromium/chrome/browser/tab/TabWebContentsDelegateAndroid.java',
       'android/java/src/org/chromium/chrome/browser/tabmodel/SingleTabModel.java',
       'android/java/src/org/chromium/chrome/browser/tabmodel/TabModelJniBridge.java',
       'android/java/src/org/chromium/chrome/browser/TabState.java',
@@ skipping 2228 matching lines @@
             '../components/components.gyp:rlz',
             '../components/components.gyp:search_engines',
             '../rlz/rlz.gyp:rlz_lib',
             'common',
           ],
         },
       ],
     }],
   ],
 }