GTTF: always run perf tests serially

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' : {
     'chromedriver_unittest_sources': [
       'test/chromedriver/capabilities_unittest.cc',
       'test/chromedriver/chrome/chrome_finder_unittest.cc',
       'test/chromedriver/chrome/console_logger_unittest.cc',
       'test/chromedriver/chrome/device_manager_unittest.cc',
@@ skipping 2038 matching lines @@
         '../components/autofill/content/renderer/test_password_autofill_agent.h',
         'app/chrome_command_ids.h',
         'app/chrome_dll.rc',
         'app/chrome_dll_resource.h',
         'app/chrome_version.rc.version',
         'browser/extensions/api/tab_capture/tab_capture_performancetest.cc',
         'browser/extensions/browsertest_util.cc',
         'browser/extensions/extension_apitest.cc',
         'browser/extensions/extension_browsertest.cc',
         'browser/extensions/extension_test_notification_observer.cc',
-        'test/base/browser_tests_main.cc',
+        'test/base/browser_perf_tests_main.cc',
         'test/base/chrome_render_view_test.cc',
         'test/base/chrome_render_view_test.h',
         'test/perf/browser_perf_test.cc',
         'test/perf/browser_perf_test.h',
         'test/perf/rendering/throughput_tests.cc',
       ],
       'rules': [
         {
           'rule_name': 'js2webui',
           'extension': 'js',
@@ skipping 443 matching lines @@
         'browser/sync/test/integration/sessions_helper.cc',
         'browser/sync/test/integration/sessions_helper.h',
         'browser/sync/test/integration/sync_datatype_helper.cc',
         'browser/sync/test/integration/sync_datatype_helper.h',
         'browser/sync/test/integration/sync_extension_helper.cc',
         'browser/sync/test/integration/sync_extension_helper.h',
         'browser/sync/test/integration/sync_test.cc',
         'browser/sync/test/integration/sync_test.h',
         'browser/sync/test/integration/typed_urls_helper.cc',
         'browser/sync/test/integration/typed_urls_helper.h',
-        'test/base/browser_tests_main.cc',
+        'test/base/browser_perf_tests_main.cc',
         'test/data/resource.rc',
       ],
       'conditions': [
         ['toolkit_uses_gtk == 1', {
            'dependencies': [
              '../build/linux/system.gyp:gtk',
            ],
         }],
         ['toolkit_uses_gtk == 1 or chromeos==1 or (OS=="linux" and use_aura==1)', {
           'dependencies': [
@@ skipping 711 matching lines @@
             'utility',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
           ],
         }]
     }],
   ],  # 'conditions'
 }