browser_test: Add a browser_tests_runner target for running tests.

chrome/chrome_tests.gypi

 # 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': {
     'build_angle_deqp_tests%': 0,
     'chrome_browser_extensions_test_support_sources': [
       # A list of sources which is shared between different browser tests.
       'browser/apps/app_browsertest_util.cc',
       'browser/apps/app_browsertest_util.h',
@@ skipping 1503 matching lines @@
       'browser/sync/test/integration/two_client_extension_settings_and_app_settings_sync_test.cc',
       'browser/sync/test/integration/two_client_extensions_sync_test.cc',
       'browser/sync/test/integration/two_client_password_manager_setting_migrator_service_sync_test.cc',
       'browser/sync/test/integration/two_client_passwords_sync_test.cc',
       'browser/sync/test/integration/two_client_preferences_sync_test.cc',
       'browser/sync/test/integration/two_client_search_engines_sync_test.cc',
       'browser/sync/test/integration/two_client_sessions_sync_test.cc',
       'browser/sync/test/integration/two_client_themes_sync_test.cc',
       'browser/sync/test/integration/two_client_typed_urls_sync_test.cc',
       'browser/sync/test/integration/two_client_wifi_credentials_sync_test.cc',
-      'test/base/browser_tests_main.cc',
       'test/data/resource.rc',
     ],
     'test_support_sync_integration_sources': [
       'browser/sync/test/integration/apps_helper.cc',
       'browser/sync/test/integration/apps_helper.h',
       'browser/sync/test/integration/autofill_helper.cc',
       'browser/sync/test/integration/autofill_helper.h',
       'browser/sync/test/integration/await_match_status_change_checker.cc',
       'browser/sync/test/integration/await_match_status_change_checker.h',
       'browser/sync/test/integration/bookmarks_helper.cc',
@@ skipping 2058 matching lines @@
             'browser',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
           ],
         }]
     }],
   ],  # 'conditions'
 }