Remove all the ephemeral apps code.

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': {
     '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',
       'browser/extensions/browsertest_util.cc',
@@ skipping 36 matching lines @@
       'app/chrome_version.rc.version',
       'browser/accessibility/browser_accessibility_state_browsertest.cc',
       'browser/app_controller_mac_browsertest.mm',
       'browser/apps/app_browsertest.cc',
       'browser/apps/app_shim/app_shim_host_manager_browsertest_mac.mm',
       'browser/apps/app_shim/test/app_shim_host_manager_test_api_mac.cc',
       'browser/apps/app_shim/test/app_shim_host_manager_test_api_mac.h',
       'browser/apps/app_speech_recognition_browsertest.cc',
       'browser/apps/app_url_redirector_browsertest.cc',
       'browser/apps/app_window_browsertest.cc',
-      'browser/apps/ephemeral_app_browsertest.cc',
-      'browser/apps/ephemeral_app_browsertest.h',
-      'browser/apps/ephemeral_app_service_browsertest.cc',
       'browser/apps/event_page_browsertest.cc',
       'browser/apps/guest_view/app_view_browsertest.cc',
       'browser/apps/guest_view/extension_view/extension_view_browsertest.cc',
       'browser/apps/guest_view/web_view_browsertest.cc',
       'browser/apps/service_worker_browsertest.cc',
       'browser/apps/window_controls_browsertest.cc',
       'browser/autocomplete/autocomplete_browsertest.cc',
       'browser/autofill/autofill_browsertest.cc',
       'browser/autofill/autofill_server_browsertest.cc',
       'browser/autofill/content_autofill_driver_browsertest.cc',
@@ skipping 3451 matching lines @@
             'utility',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
           ],
         }]
     }],
   ],  # 'conditions'
 }