Removing FRE UI for unicorn accounts.

chrome/browser/supervised_user/child_accounts/child_account_service.h

Index: chrome/browser/supervised_user/child_accounts/child_account_service.h
diff --git a/chrome/browser/supervised_user/child_accounts/child_account_service.h b/chrome/browser/supervised_user/child_accounts/child_account_service.h
index 4a1519670d151ea72d94199ac39cda71cf43e7db..eb395232b59a4cb7702c73558d4c2b82cc7a56a6 100644
--- a/chrome/browser/supervised_user/child_accounts/child_account_service.h
+++ b/chrome/browser/supervised_user/child_accounts/child_account_service.h
@@ -11,9 +11,11 @@
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "base/observer_list.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "chrome/browser/supervised_user/child_accounts/family_info_fetcher.h"
+#include "chrome/browser/supervised_user/child_accounts/flags_fetching_observer.h"
 #include "chrome/browser/supervised_user/supervised_user_service.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "components/signin/core/browser/account_service_flag_fetcher.h"
@@ -46,6 +48,10 @@ class ChildAccountService : public KeyedService,
   // KeyedService:
   void Shutdown() override;
 
+  // Adds/removes observer.
+  void AddFlagFetchingObserver(FlagsFetchingObserver* observer);
+  void RemoveFlagFetchingObserver(FlagsFetchingObserver* observer);
+
  private:
   friend class ChildAccountServiceFactory;
   // Use |ChildAccountServiceFactory::GetForProfile(...)| to get an instance of
@@ -109,6 +115,8 @@ class ChildAccountService : public KeyedService,
   base::OneShotTimer<ChildAccountService> family_fetch_timer_;
   net::BackoffEntry family_fetch_backoff_;
 
+  ObserverList<FlagsFetchingObserver> observer_list_;
+
   base::WeakPtrFactory<ChildAccountService> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildAccountService);