[chromedriver] Add page loading strategy to capabilities

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 1324 matching lines @@
       'test/chromedriver/chrome/mobile_emulation_override_manager.cc',
       'test/chromedriver/chrome/mobile_emulation_override_manager.h',
       'test/chromedriver/chrome/navigation_tracker.cc',
       'test/chromedriver/chrome/navigation_tracker.h',
       'test/chromedriver/chrome/network_conditions.cc',
       'test/chromedriver/chrome/network_conditions.h',
       'test/chromedriver/chrome/network_conditions_override_manager.cc',
       'test/chromedriver/chrome/network_conditions_override_manager.h',
       'test/chromedriver/chrome/network_list.cc',
       'test/chromedriver/chrome/network_list.h',
+      'test/chromedriver/chrome/non_blocking_navigation_tracker.cc',
+      'test/chromedriver/chrome/non_blocking_navigation_tracker.h',
+      'test/chromedriver/chrome/page_load_strategy.cc',
+      'test/chromedriver/chrome/page_load_strategy.h',
       'test/chromedriver/chrome/status.cc',
       'test/chromedriver/chrome/status.h',
       'test/chromedriver/chrome/ui_events.cc',
       'test/chromedriver/chrome/ui_events.h',
       'test/chromedriver/chrome/util.cc',
       'test/chromedriver/chrome/util.h',
       'test/chromedriver/chrome/version.cc',
       'test/chromedriver/chrome/version.h',
       'test/chromedriver/chrome/web_view.h',
       'test/chromedriver/chrome/web_view_impl.cc',
@@ skipping 2254 matching lines @@
             'browser',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
           ],
         }]
     }],
   ],  # 'conditions'
 }