Add support for setting QUIC connection options via field trial config.

chrome/chrome_tests_unit.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.
 {
   'targets': [
     {
       # This target contains mocks and test utilities that don't belong in
       # production libraries but are used by more than one test executable.
       'target_name': 'test_support_common',
       'type': 'static_library',
@@ skipping 1794 matching lines @@
         'browser/ui/webui/performance_monitor/performance_monitor_ui_util_unittest.cc',
         'browser/ui/webui/print_preview/print_preview_ui_unittest.cc',
         'browser/ui/webui/signin/login_ui_service_unittest.cc',
         'browser/ui/webui/sync_setup_handler_unittest.cc',
         'browser/ui/webui/theme_source_unittest.cc',
         'browser/ui/webui/web_dialog_web_contents_delegate_unittest.cc',
         'browser/ui/window_sizer/window_sizer_ash_unittest.cc',
         'browser/ui/window_sizer/window_sizer_common_unittest.cc',
         'browser/ui/window_sizer/window_sizer_unittest.cc',
         'browser/ui/zoom/zoom_controller_unittest.cc',
+        'browser/io_thread_unittest.cc',

[Lei Zhang, 2014/06/23 21:28:14]

nit: can you put this in alphabetical order? (and the two below if you don't
mind)

[Ryan Hamilton, 2014/06/23 22:38:52]

Done.

         'browser/upload_list_unittest.cc',
         'browser/chrome_content_browser_client_unittest.cc',
         'browser/undo/bookmark_undo_service_test.cc',
         'browser/undo/undo_manager_test.cc',
         'browser/web_applications/web_app_mac_unittest.mm',
         'browser/web_applications/web_app_unittest.cc',
         'browser/web_resource/eula_accepted_notifier_unittest.cc',
         'browser/web_resource/promo_resource_service_mobile_ntp_unittest.cc',
         'browser/web_resource/promo_resource_service_unittest.cc',
         'browser/web_resource/resource_request_allowed_notifier_test_util.cc',
@@ skipping 1050 matching lines @@
             'unit_tests.isolate',
           ],
           'sources': [
             'unit_tests.isolate',
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }