Eliminate OmniboxMetricsProvider listening to notification

components/omnibox.gypi

 # Copyright 2014 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.
 
 {
   'targets': [
     {
       # GN version: //components/omnibox/browser
       'target_name': 'omnibox_browser',
       'type': 'static_library',
@@ skipping 74 matching lines @@
         'omnibox/browser/keyword_provider.h',
         'omnibox/browser/omnibox_client.h',
         'omnibox/browser/omnibox_controller.cc',
         'omnibox/browser/omnibox_controller.h',
         'omnibox/browser/omnibox_edit_controller.cc',
         'omnibox/browser/omnibox_edit_controller.h',
         'omnibox/browser/omnibox_edit_model.cc',
         'omnibox/browser/omnibox_edit_model.h',
         'omnibox/browser/omnibox_field_trial.cc',
         'omnibox/browser/omnibox_field_trial.h',
+        'omnibox/browser/omnibox_event_global_tracker.cc',
+        'omnibox/browser/omnibox_event_global_tracker.h',
         'omnibox/browser/omnibox_log.cc',
         'omnibox/browser/omnibox_log.h',
         'omnibox/browser/omnibox_navigation_observer.h',
         'omnibox/browser/omnibox_popup_model.cc',
         'omnibox/browser/omnibox_popup_model.h',
         'omnibox/browser/omnibox_popup_model_observer.h',
         'omnibox/browser/omnibox_popup_view.h',
         'omnibox/browser/omnibox_pref_names.cc',
         'omnibox/browser/omnibox_pref_names.h',
         'omnibox/browser/omnibox_switches.cc',
@@ skipping 65 matching lines @@
       'sources': [
         # Note: sources list duplicated in GN build.
         'omnibox/browser/mock_autocomplete_provider_client.cc',
         'omnibox/browser/mock_autocomplete_provider_client.h',
         'omnibox/browser/test_scheme_classifier.cc',
         'omnibox/browser/test_scheme_classifier.h',
       ],
     },
   ],
 }