Added unit tests for getCredentialsFromAuthCode.

remoting/remoting_test.gypi

 # Copyright 2014 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': [
     {
       # GN version: //remoting:test_support
       'target_name': 'remoting_test_common',
       'type': 'static_library',
@@ skipping 190 matching lines @@
         'host/native_messaging/native_messaging_writer_unittest.cc',
         'host/pairing_registry_delegate_linux_unittest.cc',
         'host/pairing_registry_delegate_win_unittest.cc',
         'host/pin_hash_unittest.cc',
         'host/policy_watcher_unittest.cc',
         'host/register_support_host_request_unittest.cc',
         'host/remote_input_filter_unittest.cc',
         'host/resizing_host_observer_unittest.cc',
         'host/screen_resolution_unittest.cc',
         'host/server_log_entry_host_unittest.cc',
+        'host/setup/mock_oauth_client.cc',
+        'host/setup/mock_oauth_client.h',
         'host/setup/me2me_native_messaging_host.cc',
         'host/setup/me2me_native_messaging_host.h',
         'host/setup/me2me_native_messaging_host_unittest.cc',
         'host/setup/oauth_helper_unittest.cc',
         'host/setup/pin_validator_unittest.cc',
         'host/shaped_desktop_capturer_unittest.cc',
         'host/third_party_auth_config_unittest.cc',
         'host/token_validator_factory_impl_unittest.cc',
         'host/touch_injector_win_unittest.cc',
         'host/video_frame_pump_unittest.cc',
@@ skipping 234 matching lines @@
               'dependencies': [
                 '../base/allocator/allocator.gyp:allocator',
               ],
             }],
           ],  # end of 'conditions'
         },  # end of target 'remoting_perftests'
       ]
     }]
   ]
 }