mac: Expose keychain access frequency to Telemetry.

base/base.gypi

 # Copyright (c) 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.
 
 {
   'target_defaults': {
     'variables': {
       'base_target': 0,
       'base_i18n_target': 0,
     },
@@ skipping 263 matching lines @@
           'logging_win.h',
           'mac/authorization_util.h',
           'mac/authorization_util.mm',
           'mac/bind_objc_block.h',
           'mac/bundle_locations.h',
           'mac/bundle_locations.mm',
           'mac/close_nocancel.cc',
           'mac/cocoa_protocols.h',
           'mac/foundation_util.h',
           'mac/foundation_util.mm',
+          'mac/keychain_metrics.cc',
+          'mac/keychain_metrics.h',
           'mac/launch_services_util.cc',
           'mac/launch_services_util.h',
           'mac/launchd.cc',
           'mac/launchd.h',
           'mac/libdispatch_task_runner.cc',
           'mac/libdispatch_task_runner.h',
           'mac/mac_logging.h',
           'mac/mac_logging.cc',
           'mac/mac_util.h',
           'mac/mac_util.mm',
@@ skipping 725 matching lines @@
           'i18n/time_formatting.h',
           'i18n/timezone.cc',
           'i18n/timezone.h',
           'i18n/utf8_validator_tables.cc',
           'i18n/utf8_validator_tables.h',
         ],
       }]
     ],
   },
 }