Android - Introduce "keyboard accessory" for Autofill suggestions.

chrome/chrome_browser_ui.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': {
     # There are two sections of sources:
     # * "Platform"-based sources (OS, toolkit, etc.)
     # * Feature/directory-based sources (e.g., history, printing)
 
     ### Platform-based sources ###
     'chrome_browser_ui_non_ios_sources': [
       'browser/ui/accelerator_utils.h',
       'browser/ui/android/android_about_app_info.cc',
       'browser/ui/android/android_about_app_info.h',
       'browser/ui/android/autofill/autofill_dialog_controller_android.cc',
       'browser/ui/android/autofill/autofill_dialog_controller_android.h',
       'browser/ui/android/autofill/autofill_dialog_result.cc',
       'browser/ui/android/autofill/autofill_dialog_result.h',
+      'browser/ui/android/autofill/autofill_keyboard_accessory_view.cc',
+      'browser/ui/android/autofill/autofill_keyboard_accessory_view.h',
       'browser/ui/android/autofill/autofill_logger_android.cc',
       'browser/ui/android/autofill/autofill_logger_android.h',
       'browser/ui/android/autofill/autofill_popup_view_android.cc',
       'browser/ui/android/autofill/autofill_popup_view_android.h',
       'browser/ui/android/autofill/card_unmask_prompt_view_android.cc',
       'browser/ui/android/autofill/card_unmask_prompt_view_android.h',
       'browser/ui/android/autofill/password_generation_popup_view_android.cc',
       'browser/ui/android/autofill/password_generation_popup_view_android.h',
       'browser/ui/android/chrome_http_auth_handler.cc',
       'browser/ui/android/chrome_http_auth_handler.h',
@@ skipping 3143 matching lines @@
           ],
           'sources': [
             '<@(chrome_browser_ui_non_mobile_sources)',
             '<@(chrome_browser_ui_omnibox_non_mobile_sources)',
           ],
         }],
       ],
     },
   ],
 }