Add ErrorConsole UI for Extension Install Warnings

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' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
       'common/pref_names.cc',
@@ skipping 1351 matching lines @@
         'browser/extensions/background_page_apitest.cc',
         'browser/extensions/background_scripts_apitest.cc',
         'browser/extensions/chrome_app_api_browsertest.cc',
         'browser/extensions/content_script_apitest.cc',
         'browser/extensions/content_security_policy_apitest.cc',
         'browser/extensions/convert_web_app_browsertest.cc',
         'browser/extensions/crazy_extension_browsertest.cc',
         'browser/extensions/cross_origin_xhr_apitest.cc',
         'browser/extensions/crx_installer_browsertest.cc',
         'browser/extensions/docs/examples/apps/calculator_browsertest.cc',
+        'browser/extensions/error_console/error_console_browsertest.cc',
         'browser/extensions/events_apitest.cc',
         'browser/extensions/execute_script_apitest.cc',
         'browser/extensions/extension_apitest.cc',
         'browser/extensions/extension_apitest.h',
         'browser/extensions/extension_bindings_apitest.cc',
         'browser/extensions/extension_blacklist_browsertest.cc',
         'browser/extensions/extension_browsertest.cc',
         'browser/extensions/extension_browsertest.h',
         'browser/extensions/extension_context_menu_browsertest.cc',
         'browser/extensions/extension_disabled_ui_browsertest.cc',
@@ skipping 2033 matching lines @@
             'utility',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
           ],
         }]
     }],
   ],  # 'conditions'
 }