Delete all cached ephemeral apps at startup.

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 579 matching lines @@
       '../apps/saved_files_service_unittest.cc',
       '../components/drive/drive_api_util_unittest.cc',
       '../components/drive/drive_app_registry_unittest.cc',
       '../components/drive/drive_uploader_unittest.cc',
       '../components/drive/event_logger_unittest.cc',
       '../components/drive/service/drive_api_service_unittest.cc',
       '../components/drive/service/fake_drive_service_unittest.cc',
       'browser/apps/app_shim/app_shim_host_mac_unittest.cc',
       'browser/apps/app_shim/extension_app_shim_handler_mac_unittest.cc',
       'browser/apps/drive/drive_app_mapping_unittest.cc',
-      'browser/apps/ephemeral_app_service_unittest.cc',
       'browser/autocomplete/keyword_extensions_delegate_impl_unittest.cc',
       'browser/extensions/active_script_controller_unittest.cc',
       'browser/extensions/active_tab_unittest.cc',
       'browser/extensions/activity_log/activity_database_unittest.cc',
       'browser/extensions/activity_log/activity_log_enabled_unittest.cc',
       'browser/extensions/activity_log/activity_log_policy_unittest.cc',
       'browser/extensions/activity_log/activity_log_unittest.cc',
       'browser/extensions/activity_log/counting_policy_unittest.cc',
       'browser/extensions/activity_log/database_string_table_unittest.cc',
       'browser/extensions/activity_log/fullstream_ui_policy_unittest.cc',
@@ skipping 2372 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }