Add test for ChromeVox injection into webview

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 405 matching lines @@
           ],
           'conditions': [
             ['disable_nacl==0 and disable_nacl_untrusted==0', {
               'dependencies': [
                 '../native_client/src/trusted/service_runtime/linux/nacl_bootstrap.gyp:nacl_helper_bootstrap',
                 '../components/nacl.gyp:nacl_helper',
               ],
             }],
           ],
           'sources': [
+            'browser/chromeos/accessibility/speech_monitor.cc',
+            'browser/chromeos/accessibility/speech_monitor.h',
             'browser/chromeos/accessibility/spoken_feedback_browsertest.cc',
             'browser/chromeos/accessibility/sticky_keys_browsertest.cc',
             'browser/chromeos/input_method/textinput_browsertest.cc',
             'browser/chromeos/input_method/textinput_surroundingtext_browsertest.cc',
             'browser/chromeos/input_method/textinput_test_helper.cc',
             'browser/chromeos/input_method/textinput_test_helper.h',
             'browser/chromeos/login/captive_portal_window_browsertest.cc',
             'browser/chromeos/login/eula_browsertest.cc',
             'browser/chromeos/login/login_browsertest.cc',
             'browser/chromeos/login/login_manager_test.cc',
@@ skipping 575 matching lines @@
         'browser/browsing_data/browsing_data_local_storage_helper_browsertest.cc',
         'browser/browsing_data/browsing_data_remover_browsertest.cc',
         'browser/captive_portal/captive_portal_browsertest.cc',
         'browser/chrome_content_browser_client_browsertest.cc',
         'browser/chrome_main_browsertest.cc',
         'browser/chrome_plugin_browsertest.cc',
         'browser/chrome_security_exploit_browsertest.cc',
         'browser/chrome_switches_browsertest.cc',
         'browser/chromeos/accessibility/accessibility_manager_browsertest.cc',
         'browser/chromeos/accessibility/magnification_manager_browsertest.cc',
+        'browser/chromeos/accessibility/speech_monitor.cc',
+        'browser/chromeos/accessibility/speech_monitor.h',
         'browser/chromeos/app_mode/kiosk_app_manager_browsertest.cc',
         'browser/chromeos/app_mode/kiosk_app_update_service_browsertest.cc',
         'browser/chromeos/attestation/attestation_policy_browsertest.cc',
         'browser/chromeos/drive/drive_integration_service_browsertest.cc',
         'browser/chromeos/drive/test_util.cc',
         'browser/chromeos/drive/test_util.h',
         'browser/chromeos/extensions/screenlock_private_apitest.cc',
         'browser/chromeos/extensions/echo_private_apitest.cc',
         'browser/chromeos/extensions/file_manager/file_browser_handler_api_test.cc',
         'browser/chromeos/extensions/file_manager/file_browser_private_apitest.cc',
@@ skipping 2195 matching lines @@
             'utility',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
           ],
         }]
     }],
   ],  # 'conditions'
 }