Notify Files App when ARC++ app is installed/removed

chrome/browser/chromeos/extensions/file_manager/event_router.cc

Index: chrome/browser/chromeos/extensions/file_manager/event_router.cc
diff --git a/chrome/browser/chromeos/extensions/file_manager/event_router.cc b/chrome/browser/chromeos/extensions/file_manager/event_router.cc
index 2b78461c5a07ff58cbacdfa590ab0b40537a8eae..97e52a9295ef56a750d77527ddba1c85676b9742 100644
--- a/chrome/browser/chromeos/extensions/file_manager/event_router.cc
+++ b/chrome/browser/chromeos/extensions/file_manager/event_router.cc
@@ -397,11 +397,22 @@ EventRouter::EventRouter(Profile* profile)
   ObserveEvents();
 }
 
-EventRouter::~EventRouter() {
+EventRouter::~EventRouter() = default;
+
+void EventRouter::OnAppsUpdated() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  BroadcastEvent(profile_,
+                 extensions::events::FILE_MANAGER_PRIVATE_ON_APPS_UPDATED,
+                 file_manager_private::OnAppsUpdated::kEventName,
+                 file_manager_private::OnAppsUpdated::Create());
 }
 
 void EventRouter::Shutdown() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
+
+  if (ArcSessionManager::IsAllowedForProfile(profile_))
+    arc::ArcServiceManager::Get()->RemoveObserver(this);
+
   chromeos::system::TimezoneSettings::GetInstance()->RemoveObserver(this);
 
   DLOG_IF(WARNING, !file_watchers_.empty())
@@ -492,6 +503,9 @@ void EventRouter::ObserveEvents() {
   pref_change_registrar_->Add(prefs::kUse24HourClock, callback);
 
   chromeos::system::TimezoneSettings::GetInstance()->AddObserver(this);
+
+  if (ArcSessionManager::IsAllowedForProfile(profile_))
+    arc::ArcServiceManager::Get()->AddObserver(this);
 }
 
 // File watch setup routines.