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 239fa82066e863f99ef9e552fc10d8a448b89abb..d2ca610a9b234523be09ef1ef89bb8d2cf3a37be 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
@@ -14,6 +14,7 @@ class CastConfigClientMediaRouter;
 class ChromeLauncherControllerMus;
 class ImmersiveContextMus;
 class ImmersiveHandlerFactoryMus;
+class SessionControllerClient;
 class SystemTrayClient;
 class VpnListForwarder;
 
@@ -32,6 +33,7 @@ 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<VpnListForwarder> vpn_list_forwarder_;