Get a minimal unit_tests target building and running for iOS

chrome/chrome_browser_ui.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser_ui',
       'type': 'static_library',
@@ skipping 2128 matching lines @@
         }, {  # OS == "ios"
           'dependencies': [
             '../net/net.gyp:net',
           ],
           'sources/': [
             # iOS uses only small portions of browser/ui/.
             ['exclude', '\\.(cc|mm)$'],
             ['include', '_ios\\.(cc|mm)$'],
             ['include', '(^|/)ios/'],
             # TODO(ios): Add files here as they are updated to compile on iOS.
+            ['include', '^browser/ui/profile_error_dialog\\.cc$'],
           ],
         }],
         ['enable_one_click_signin==0', {
           'sources!': [
             'browser/ui/cocoa/one_click_signin_bubble_controller.h',
             'browser/ui/cocoa/one_click_signin_bubble_controller.mm',
             'browser/ui/gtk/one_click_signin_bubble_gtk.cc',
             'browser/ui/gtk/one_click_signin_bubble_gtk.h',
             'browser/ui/sync/one_click_signin_helper.cc',
             'browser/ui/sync/one_click_signin_helper.h',
@@ skipping 594 matching lines @@
             ['exclude', '^browser/ui/views/select_file_dialog_extension.cc'],
             ['exclude', '^browser/ui/views/select_file_dialog_extension.h'],
             ['exclude', '^browser/ui/views/select_file_dialog_extension_factory.cc'],
             ['exclude', '^browser/ui/views/select_file_dialog_extension_factory.h'],
           ]}
         ],
       ],
     },
   ],
 }