[NOT FOR REVIEW] Significantly simplify the PlatformNotificationService //content API.

content/content_browser.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.
 
 {
   'dependencies': [
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../device/vibration/vibration.gyp:device_vibration',
     '../device/vibration/vibration.gyp:device_vibration_mojo_bindings',
@@ skipping 10 matching lines @@
     '../ui/accessibility/accessibility.gyp:accessibility',
     '../ui/accessibility/accessibility.gyp:ax_gen',
     '../ui/base/ui_base.gyp:ui_base',
     '../ui/base/ime/ui_base_ime.gyp:ui_base_ime',
     '../ui/events/events.gyp:blink',
     '../ui/events/events.gyp:events',
     '../ui/events/events.gyp:events_base',
     '../ui/events/events.gyp:gesture_detection',
     '../ui/gfx/gfx.gyp:gfx',
     '../ui/gfx/gfx.gyp:gfx_geometry',
+    '../ui/message_center/message_center.gyp:message_center',
     '../ui/resources/ui_resources.gyp:ui_resources',
     '../ui/snapshot/snapshot.gyp:snapshot',
     'browser/background_sync/background_sync_proto.gyp:background_sync_proto',
     'browser/cache_storage/cache_storage_proto.gyp:cache_storage_proto',
     'browser/notifications/notification_proto.gyp:notification_proto',
     'browser/service_worker/service_worker_proto.gyp:service_worker_proto',
     'browser/speech/proto/speech_proto.gyp:speech_proto',
     'content_common_mojo_bindings.gyp:content_common_mojo_bindings',
   ],
   'export_dependent_settings': [
@@ skipping 986 matching lines @@
       'browser/notification_service_impl.cc',
       'browser/notification_service_impl.h',
       'browser/notifications/notification_database.cc',
       'browser/notifications/notification_database.h',
       'browser/notifications/notification_database_data_conversions.cc',
       'browser/notifications/notification_database_data_conversions.h',
       'browser/notifications/notification_event_dispatcher_impl.cc',
       'browser/notifications/notification_event_dispatcher_impl.h',
       'browser/notifications/notification_message_filter.cc',
       'browser/notifications/notification_message_filter.h',
+      'browser/notifications/notification_id_generator.cc',
+      'browser/notifications/notification_id_generator.h',
       'browser/notifications/page_notification_delegate.cc',
       'browser/notifications/page_notification_delegate.h',
+      'browser/notifications/persistent_notification_delegate.cc',
+      'browser/notifications/persistent_notification_delegate.h',
       'browser/notifications/platform_notification_context_impl.cc',
       'browser/notifications/platform_notification_context_impl.h',
       'browser/permissions/permission_service_context.cc',
       'browser/permissions/permission_service_context.h',
       'browser/permissions/permission_service_impl.cc',
       'browser/permissions/permission_service_impl.h',
       'browser/power_monitor_message_broadcaster.cc',
       'browser/power_monitor_message_broadcaster.h',
       'browser/power_profiler/power_data_provider.h',
       'browser/power_profiler/power_event.cc',
@@ skipping 983 matching lines @@
         'browser/media/media_web_contents_observer.h',
       ],
     }],
     ['OS == "linux" and use_openssl==1', {
       'dependencies': [
         '../third_party/boringssl/boringssl.gyp:boringssl',
       ],
     }],
   ],
 }