Allow using c/b/ui/passwords/password_bubble_experiment.* on iOS

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)
 
@@ skipping 1341 matching lines @@
       'browser/ui/views/javascript_app_modal_dialog_views_x11.cc',
       'browser/ui/views/javascript_app_modal_dialog_views_x11.h',
       'browser/ui/views/status_icons/status_icon_linux_wrapper.cc',
       'browser/ui/views/status_icons/status_icon_linux_wrapper.h',
       'browser/ui/webui/help/version_updater_basic.cc',
       'browser/ui/webui/help/version_updater_basic.h',
     ],
     # Files used on iOS. iOS uses only these files and does not share other
     # lists, so a file may appear here and in the non_ios_sources also.
     'chrome_browser_ui_ios_sources': [
+      'browser/ui/passwords/password_bubble_experiment.cc',
+      'browser/ui/passwords/password_bubble_experiment.h',
       'browser/ui/profile_error_dialog.cc',
       'browser/ui/profile_error_dialog.h',
     ],
     # Counts desktop Linux and ChromeOS.
     'chrome_browser_ui_linux_sources': [
       'browser/ui/certificate_dialogs.cc',
       'browser/ui/certificate_dialogs.h',
       'browser/ui/startup/autolaunch_prompt.cc',
       'browser/ui/views/apps/chrome_app_window_client_views.cc',
       'browser/ui/webui/certificate_viewer_ui.cc',
@@ skipping 1816 matching lines @@
           ],
           'sources': [
             '<@(chrome_browser_ui_non_mobile_sources)',
             '<@(chrome_browser_ui_omnibox_non_mobile_sources)',
           ],
         }],
       ],
     },
   ],
 }