Add ScopedKeepAlive to c/b/lifetime

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 312 matching lines @@
     ],
     'chrome_unit_tests_mac_android_sources': [
       'browser/autofill/autofill_cc_infobar_delegate_unittest.cc',
       'browser/password_manager/save_password_infobar_delegate_unittest.cc',
     ],
     'chrome_unit_tests_android_sources': [
       'browser/password_manager/auto_signin_first_run_dialog_android_unittest.cc',
       'browser/permissions/permission_queue_controller_unittest.cc',
     ],
     'chrome_unit_tests_non_mobile_sources': [
+      'browser/lifetime/keep_alive_registry_unittest.cc',
       'browser/renderer_context_menu/render_view_context_menu_test_util.cc',
       'browser/renderer_context_menu/render_view_context_menu_test_util.h',
       'browser/ui/autofill/save_card_bubble_controller_impl_unittest.cc',
       'browser/ui/passwords/manage_passwords_ui_controller_unittest.cc',
       'browser/ui/website_settings/mock_permission_bubble_factory.cc',
       'browser/ui/website_settings/mock_permission_bubble_factory.h',
       'browser/ui/website_settings/mock_permission_bubble_view.cc',
       'browser/ui/website_settings/mock_permission_bubble_view.h',
     ],
     'chrome_unit_tests_spellchecker_sources': [
@@ skipping 2686 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }