Migrate Obsolete NotificationsSettings and remove content_settings::NotificationsProvider.

chrome/chrome_browser.gypi

 # Copyright (c) 2011 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': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'dependencies': [
@@ skipping 775 matching lines @@
         'browser/component_updater/component_unpacker.cc',
         'browser/component_updater/component_unpacker.h',
         'browser/component_updater/component_updater_service.cc',
         'browser/component_updater/component_updater_service.h',
         'browser/component_updater/pepper_flash_component_installer.cc',
         'browser/component_updater/pepper_flash_component_installer.h',
         'browser/content_settings/content_settings_details.cc',
         'browser/content_settings/content_settings_details.h',
         'browser/content_settings/content_settings_extension_provider.cc',
         'browser/content_settings/content_settings_extension_provider.h',
-        'browser/content_settings/content_settings_notification_provider.cc',
-        'browser/content_settings/content_settings_notification_provider.h',
         'browser/content_settings/content_settings_observable_provider.cc',
         'browser/content_settings/content_settings_observable_provider.h',
         'browser/content_settings/content_settings_observer.h',
         'browser/content_settings/content_settings_origin_identifier_value_map.cc',
         'browser/content_settings/content_settings_origin_identifier_value_map.h',
         'browser/content_settings/content_settings_pattern.cc',
         'browser/content_settings/content_settings_pattern.h',
         'browser/content_settings/content_settings_pattern_parser.cc',
         'browser/content_settings/content_settings_pattern_parser.h',
         'browser/content_settings/content_settings_policy_provider.cc',
@@ skipping 742 matching lines @@
         'browser/notifications/notification.h',
         'browser/notifications/notification_delegate.h',
         'browser/notifications/notification_exceptions_table_model.cc',
         'browser/notifications/notification_exceptions_table_model.h',
         'browser/notifications/notification_object_proxy.cc',
         'browser/notifications/notification_object_proxy.h',
         'browser/notifications/notification_options_menu_model.cc',
         'browser/notifications/notification_options_menu_model.h',
         'browser/notifications/notification_ui_manager.cc',
         'browser/notifications/notification_ui_manager.h',
-        'browser/notifications/notifications_prefs_cache.cc',
-        'browser/notifications/notifications_prefs_cache.h',
         'browser/ntp_background_util.cc',
         'browser/ntp_background_util.h',
         'browser/omnibox_search_hint.cc',
         'browser/omnibox_search_hint.h',
         'browser/oom_priority_manager.cc',
         'browser/oom_priority_manager.h',
         'browser/page_info_model.cc',
         'browser/page_info_model.h',
         'browser/page_info_model_observer.h',
         'browser/page_info_window.h',
@@ skipping 3316 matching lines @@
               # weak imports in dependents, who still must #include
               # closure_blocks_leopard_compat.h to get weak imports.
               'type': 'none',
             }],
           ],
         },
       ],
     }],
   ],
 }