ash: Add SessionController/Client mojo interfaces

chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.h

Index: chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.h
diff --git a/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.h b/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.h
index e16b2bbdb0df39a6b6321b5f101700ed5f165989..f3faec78ce48c1fd8669267feb129cc40d69cecb 100644
--- a/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.h
+++ b/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.h
@@ -15,6 +15,7 @@ class ChromeLauncherControllerMus;
 class ChromeNewWindowClient;
 class ImmersiveContextMus;
 class ImmersiveHandlerFactoryMus;
+class SessionControllerClient;
 class SystemTrayClient;
 class VolumeController;
 class VpnListForwarder;
@@ -34,6 +35,7 @@ class ChromeBrowserMainExtraPartsAsh : public ChromeBrowserMainExtraParts {
   std::unique_ptr<CastConfigClientMediaRouter> cast_config_client_media_router_;
   std::unique_ptr<ImmersiveHandlerFactoryMus> immersive_handler_factory_;
   std::unique_ptr<ImmersiveContextMus> immersive_context_;
+  std::unique_ptr<SessionControllerClient> session_controller_client_;
   std::unique_ptr<SystemTrayClient> system_tray_client_;
   std::unique_ptr<ChromeNewWindowClient> new_window_client_;
   std::unique_ptr<VolumeController> volume_controller_;