Use the display name on ChromeOS instead of the profile name.

chrome/browser/supervised_user/supervised_user_service.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/supervised_user/supervised_user_service.h"
 
 #include "base/command_line.h"
 #include "base/memory/ref_counted.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 602 matching lines @@
     if (CommandLine::ForCurrentProcess()->HasSwitch(
             switches::kPermissionRequestApiUrl)) {
       permissions_creator_ =
           PermissionRequestCreatorApiary::CreateWithProfile(profile_);
     } else {
       PrefService* pref_service = profile_->GetPrefs();
       permissions_creator_.reset(new PermissionRequestCreatorSync(
           settings_service,
           SupervisedUserSharedSettingsServiceFactory::GetForBrowserContext(
               profile_),
-          pref_service->GetString(prefs::kProfileName),
+          GetSupervisedUserName(),
           pref_service->GetString(prefs::kSupervisedUserId)));
     }
 
     pref_change_registrar_.Add(
         prefs::kDefaultSupervisedUserFilteringBehavior,
         base::Bind(&SupervisedUserService::OnDefaultFilteringBehaviorChanged,
             base::Unretained(this)));
     pref_change_registrar_.Add(prefs::kSupervisedUserManualHosts,
         base::Bind(&SupervisedUserService::UpdateManualHosts,
                    base::Unretained(this)));
@@ skipping 123 matching lines @@
 
 void SupervisedUserService::OnBrowserSetLastActive(Browser* browser) {
   bool profile_became_active = profile_->IsSameProfile(browser->profile());
   if (!is_profile_active_ && profile_became_active)
     content::RecordAction(UserMetricsAction("ManagedUsers_OpenProfile"));
   else if (is_profile_active_ && !profile_became_active)
     content::RecordAction(UserMetricsAction("ManagedUsers_SwitchProfile"));
 
   is_profile_active_ = profile_became_active;
 }
+
+std::string SupervisedUserService::GetSupervisedUserName() const {
+#if defined(OS_CHROMEOS)
+  // The active user can be NULL in unit tests.
+  if (chromeos::UserManager::Get()->GetActiveUser()) {
+    return UTF16ToUTF8(chromeos::UserManager::Get()->GetUserDisplayName(
+        chromeos::UserManager::Get()->GetActiveUser()->GetUserID()));
+  }
+  return "";

[Nikita (slow), 2014/08/01 11:27:17]

nit: std::string()

[Adrian Kuegel, 2014/08/01 11:43:01]

Done.

+#else
+  return profile_->GetPrefs()->GetString(prefs::kProfileName);
+#endif
+}