Upstream PO2TS_IOS unit test.

ios/ios_tests.gyp

 # Copyright 2013 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': {
     'chromium_code': 1,
    },
   'targets': [
     {
-      'target_name': 'ios_consumer_base',
+      'target_name': 'test_support_ios',
       'type': 'static_library',
+      'sources': [
+        'public/test/fake_profile_oauth2_token_service_ios_provider.h',
+        'public/test/fake_profile_oauth2_token_service_ios_provider.mm',
+      ],
       'dependencies': [
-        '../base/base.gyp:base',
+        '<(DEPTH)/testing/gtest.gyp:gtest',
       ],
       'include_dirs': [
-        '..',
-      ],
-      'sources': [
-        'consumer/base/supports_user_data.cc',
-        'consumer/base/util.mm',
-        'public/consumer/base/supports_user_data.h',
-        'public/consumer/base/util.h',
+        '<(DEPTH)',
       ],
     },
   ],
 }