The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/55575d8f1b14f821068a53991b93933cd8970aba

commit 55575d8f1b14f821068a53991b93933cd8970aba
Author: Evan Stade <estade@chromium.org>
Date: Thu Nov 02 00:52:36 2017

Replace NotifierSettingsProvider with additions to AshMessageCenterClient api.

Likewise, replace NotifierSettingsObserver with additions to
AshMessageCenterController api.

Adds new mojo type for NotifierId which maps to message_center::NotifierId.
message_center::NotifierUiData isn't used anywhere else, so it's replaced with
(not mapped to) a mojo struct.

NotificationPlatformBridgeChromeOsImpl is now the hub for more things, so it's
moved to its own file and renamed to ChromeAshMessageCenterClient.

Bug:  777649 , 578868 , 777493 
Change-Id: I04db0d854f0f5aae4ad3a514cc424e35e0e88127
Reviewed-on: https://chromium-review.googlesource.com/736026
Commit-Queue: Evan Stade <estade@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#513345}
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ash/message_center/message_center_button_bar.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ash/message_center/message_center_button_bar.h
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ash/message_center/message_center_controller.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ash/message_center/message_center_controller.h
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ash/message_center/message_center_view.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ash/message_center/notifier_settings_view.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ash/message_center/notifier_settings_view.h
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ash/message_center/notifier_settings_view_unittest.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ash/public/interfaces/ash_message_center_controller.mojom
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ash/system/web_notification/web_notification_tray_unittest.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/BUILD.gn
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/chromeos/chrome_browser_main_chromeos.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/chromeos/chrome_browser_main_chromeos.h
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/notifications/arc_application_notifier_controller_chromeos.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/notifications/arc_application_notifier_controller_chromeos.h
[add] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/notifications/chrome_ash_message_center_client.cc
[add] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/notifications/chrome_ash_message_center_client.h
[rename] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/notifications/chrome_ash_message_center_client_unittest.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/notifications/extension_notifier_controller.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/notifications/extension_notifier_controller.h
[delete] https://crrev.com/78609b273f8f69a0979c6d91238a47d94f5c4dd0/chrome/browser/notifications/message_center_settings_controller_chromeos.cc
[delete] https://crrev.com/78609b273f8f69a0979c6d91238a47d94f5c4dd0/chrome/browser/notifications/message_center_settings_controller_chromeos.h
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/notifications/notification_platform_bridge_chromeos.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/notifications/notifier_controller.h
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/notifications/web_page_notifier_controller.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/browser/notifications/web_page_notifier_controller.h
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/chrome/test/BUILD.gn
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/fake_message_center.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/fake_message_center.h
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/message_center.h
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/message_center_impl.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/message_center_impl.h
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/message_center_impl_unittest.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/message_center_tray.h
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/mojo/BUILD.gn
[add] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/mojo/notifier_id.mojom
[add] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/mojo/notifier_id.typemap
[add] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/mojo/notifier_id_struct_traits.cc
[add] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/mojo/notifier_id_struct_traits.h
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/mojo/typemaps.gni
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/notifier_settings.cc
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/notifier_settings.h
[modify] https://crrev.com/55575d8f1b14f821068a53991b93933cd8970aba/ui/message_center/views/message_center_controller.h