Remove Old ChromeOS Offline Error Page

chrome/chrome_tests_unit.gypi

 # Copyright 2012 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': {
     'chrome_unit_tests_sources': [
       # histograms.xml is analyzed by AboutFlagsHistogramTest, so this
       # dependency is needed to make commit bots run unit_tests on
       # histograms.xml changes.
       '../tools/metrics/histograms/histograms.xml',
@@ skipping 1260 matching lines @@
       'browser/chromeos/login/signin/merge_session_load_page_unittest.cc',
       'browser/chromeos/login/supervised/supervised_user_authentication_unittest.cc',
       'browser/chromeos/login/users/multi_profile_user_controller_unittest.cc',
       'browser/chromeos/login/users/user_manager_unittest.cc',
       'browser/chromeos/login/users/wallpaper/wallpaper_manager_unittest.cc',
       'browser/chromeos/mobile/mobile_activator_unittest.cc',
       'browser/chromeos/mobile_config_unittest.cc',
       'browser/chromeos/net/cert_verify_proc_chromeos_unittest.cc',
       'browser/chromeos/net/network_portal_detector_impl_unittest.cc',
       'browser/chromeos/net/network_portal_notification_controller_unittest.cc',
-      'browser/chromeos/offline/offline_load_page_unittest.cc',
       'browser/chromeos/options/network_property_ui_data_unittest.cc',
       'browser/chromeos/ownership/fake_owner_settings_service.cc',
       'browser/chromeos/ownership/fake_owner_settings_service.h',
       'browser/chromeos/ownership/owner_settings_service_chromeos_unittest.cc',
       'browser/chromeos/policy/affiliated_cloud_policy_invalidator_unittest.cc',
       'browser/chromeos/policy/affiliated_invalidation_service_provider_impl_unittest.cc',
       'browser/chromeos/policy/auto_enrollment_client_unittest.cc',
       'browser/chromeos/policy/cloud_external_data_manager_base_unittest.cc',
       'browser/chromeos/policy/cloud_external_data_policy_observer_unittest.cc',
       'browser/chromeos/policy/cloud_external_data_store_unittest.cc',
@@ skipping 1598 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }