Settings People Revamp: Add 'Manage Supervised Users' row

chrome/browser/ui/webui/settings/profile_info_handler.h

Index: chrome/browser/ui/webui/settings/profile_info_handler.h
diff --git a/chrome/browser/ui/webui/settings/profile_info_handler.h b/chrome/browser/ui/webui/settings/profile_info_handler.h
index 4bc64054bd4bc09d38173407ad7047b8dd7e1cf2..304e256d9af3e08dc364427ffc65c66843622982 100644
--- a/chrome/browser/ui/webui/settings/profile_info_handler.h
+++ b/chrome/browser/ui/webui/settings/profile_info_handler.h
@@ -12,6 +12,7 @@
 #include "build/build_config.h"
 #include "chrome/browser/profiles/profile_attributes_storage.h"
 #include "chrome/browser/ui/webui/settings/settings_page_ui_handler.h"
+#include "components/prefs/pref_change_registrar.h"
 
 #if defined(OS_CHROMEOS)
 #include "content/public/browser/notification_observer.h"
@@ -29,6 +30,7 @@ class ProfileInfoHandler : public SettingsPageUIHandler,
                            public ProfileAttributesStorage::Observer {
  public:
   static const char kProfileInfoChangedEventName[];
+  static const char kProfileManagesSupervisedUsersChangedEventName[];
 
   explicit ProfileInfoHandler(Profile* profile);
   ~ProfileInfoHandler() override;
@@ -53,12 +55,23 @@ class ProfileInfoHandler : public SettingsPageUIHandler,
  private:
   FRIEND_TEST_ALL_PREFIXES(ProfileInfoHandlerTest, GetProfileInfo);
   FRIEND_TEST_ALL_PREFIXES(ProfileInfoHandlerTest, PushProfileInfo);
+  FRIEND_TEST_ALL_PREFIXES(ProfileInfoHandlerTest,
+                           GetProfileManagesSupervisedUsers);
+  FRIEND_TEST_ALL_PREFIXES(ProfileInfoHandlerTest,
+                           PushProfileManagesSupervisedUsers);
 
   // Callbacks from the page.
   void HandleGetProfileInfo(const base::ListValue* args);
+  void HandleGetProfileManagesSupervisedUsers(const base::ListValue* args);
 
   void PushProfileInfo();
 
+  // Pushes whether the current profile manages supervised users to JavaScript.
+  void PushProfileManagesSupervisedUsersStatus();
+
+  // Returns true if this profile manages supervised users.
+  bool IsProfileManagingSupervisedUsers() const;
+
   std::unique_ptr<base::DictionaryValue> GetAccountNameAndIcon() const;
 
   // Weak pointer.
@@ -67,6 +80,9 @@ class ProfileInfoHandler : public SettingsPageUIHandler,
   ScopedObserver<ProfileAttributesStorage, ProfileInfoHandler>
       profile_observer_;
 
+  // Used to listen for changes in the list of managed supervised users.
+  PrefChangeRegistrar profile_pref_registrar_;
+
 #if defined(OS_CHROMEOS)
   // Used to listen to ChromeOS user image changes.
   content::NotificationRegistrar registrar_;