Add ArcNotificationManager for new ARC notification

components/arc/arc_service_manager.cc

Index: components/arc/arc_service_manager.cc
diff --git a/components/arc/arc_service_manager.cc b/components/arc/arc_service_manager.cc
index 2fc0e0014921e6df8a6c5293b06fb4a0dbd50701..ddaae1e55c2f5eba511461a209284aa100159182 100644
--- a/components/arc/arc_service_manager.cc
+++ b/components/arc/arc_service_manager.cc
@@ -9,6 +9,7 @@
 #include "components/arc/arc_bridge_bootstrap.h"
 #include "components/arc/arc_bridge_service_impl.h"
 #include "components/arc/input/arc_input_bridge.h"
+#include "components/arc/notification/arc_notification_manager.h"
 
 namespace arc {
 
@@ -45,4 +46,11 @@ ArcBridgeService* ArcServiceManager::arc_bridge_service() {
   return arc_bridge_service_.get();
 }
 
+void ArcServiceManager::PostProfileInit(const AccountId& account_id) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+
+  arc_notification_manager_.reset(
+      new ArcNotificationManager(arc_bridge_service(), account_id));
+}
+
 }  // namespace arc