Update the AvatarMenu when a supervised user's custodian info changes.

chrome/browser/supervised_user/supervised_user_service.cc

Index: chrome/browser/supervised_user/supervised_user_service.cc
diff --git a/chrome/browser/supervised_user/supervised_user_service.cc b/chrome/browser/supervised_user/supervised_user_service.cc
index 2dde9c71482022e533371259aac6cd0fe163a51b..f6a1de6734df0d8ec1b9c3b056d44dda76497fb5 100644
--- a/chrome/browser/supervised_user/supervised_user_service.cc
+++ b/chrome/browser/supervised_user/supervised_user_service.cc
@@ -195,6 +195,11 @@ bool SupervisedUserService::ProfileIsSupervised() const {
   return profile_->IsSupervised();
 }
 
+void SupervisedUserService::OnCustodianInfoChanged() {
+  FOR_EACH_OBSERVER(
+      SupervisedUserServiceObserver, observer_list_, OnCustodianInfoChanged());
+}
+
 // static
 void SupervisedUserService::RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* registry) {
@@ -750,6 +755,31 @@ void SupervisedUserService::SetActive(bool active) {
     pref_change_registrar_.Add(prefs::kSupervisedUserManualURLs,
         base::Bind(&SupervisedUserService::UpdateManualURLs,
                    base::Unretained(this)));
+    pref_change_registrar_.Add(prefs::kSupervisedUserCustodianName,
+        base::Bind(&SupervisedUserService::OnCustodianInfoChanged,
+                   base::Unretained(this)));
+    pref_change_registrar_.Add(prefs::kSupervisedUserCustodianEmail,
+        base::Bind(&SupervisedUserService::OnCustodianInfoChanged,
+                   base::Unretained(this)));
+    pref_change_registrar_.Add(prefs::kSupervisedUserCustodianProfileImageURL,
+        base::Bind(&SupervisedUserService::OnCustodianInfoChanged,
+                   base::Unretained(this)));
+    pref_change_registrar_.Add(prefs::kSupervisedUserCustodianProfileURL,
+        base::Bind(&SupervisedUserService::OnCustodianInfoChanged,
+                   base::Unretained(this)));
+    pref_change_registrar_.Add(prefs::kSupervisedUserSecondCustodianName,
+        base::Bind(&SupervisedUserService::OnCustodianInfoChanged,
+                   base::Unretained(this)));
+    pref_change_registrar_.Add(prefs::kSupervisedUserSecondCustodianEmail,
+        base::Bind(&SupervisedUserService::OnCustodianInfoChanged,
+                   base::Unretained(this)));
+    pref_change_registrar_.Add(
+        prefs::kSupervisedUserSecondCustodianProfileImageURL,
+        base::Bind(&SupervisedUserService::OnCustodianInfoChanged,
+                   base::Unretained(this)));
+    pref_change_registrar_.Add(prefs::kSupervisedUserSecondCustodianProfileURL,
+        base::Bind(&SupervisedUserService::OnCustodianInfoChanged,
+                   base::Unretained(this)));
 
     // Initialize the filter.
     OnDefaultFilteringBehaviorChanged();