Add a fetcher class to fetch an OAuth2 login scope token from ClientLogin credentials.

chrome/chrome_tests.gypi

 # Copyright (c) 2011 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' : {
     # Variables for js2gtest rules
     'gypv8sh': '../tools/gypv8sh.py',
     'js2gtest': 'test/base/js2gtest.js',
     'mock_js': 'third_party/mock4js/mock4js.js',
     'test_api_js': 'test/data/webui/test_api.js',
@@ skipping 1419 matching lines @@
         'browser/metrics/metrics_log_serializer_unittest.cc',
         'browser/metrics/metrics_response_unittest.cc',
         'browser/metrics/metrics_service_unittest.cc',
         'browser/metrics/thread_watcher_unittest.cc',
         'browser/mock_keychain_mac.cc',
         'browser/mock_keychain_mac.h',
         'browser/net/chrome_fraudulent_certificate_reporter_unittest.cc',
         'browser/net/chrome_net_log_unittest.cc',
         'browser/net/connection_tester_unittest.cc',
         'browser/net/gaia/gaia_oauth_fetcher_unittest.cc',
+        'browser/net/gaia/oauth2_login_token_fetcher_unittest.cc',
         'browser/net/gaia/token_service_unittest.cc',
         'browser/net/gaia/token_service_unittest.h',
         'browser/net/http_server_properties_manager_unittest.cc',
         'browser/net/load_timing_observer_unittest.cc',
         'browser/net/network_stats_unittest.cc',
         'browser/net/passive_log_collector_unittest.cc',
         'browser/net/predictor_unittest.cc',
         'browser/net/pref_proxy_config_tracker_impl_unittest.cc',
         'browser/net/quoted_printable_unittest.cc',
         'browser/net/sqlite_origin_bound_cert_store_unittest.cc',
@@ skipping 2846 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }