SupervisedUserPrefStore: Add pref mapping.

chrome/browser/managed_mode/supervised_user_pref_store.cc

 // Copyright 2013 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/managed_mode/supervised_user_pref_store.h"
 
 #include "base/bind.h"
 #include "base/prefs/pref_value_map.h"
 #include "base/values.h"
 #include "chrome/browser/managed_mode/managed_mode_url_filter.h"
@@ skipping 22 matching lines @@
   },
   {
     managed_users::kContentPackManualBehaviorURLs,
     prefs::kManagedModeManualURLs,
   },
   {
     managed_users::kForceSafeSearch,
     prefs::kForceSafeSearch,
   },
   {
+    managed_users::kSigninAllowed,

[Bernhard Bauer, 2014/04/28 09:56:40]

Do you need to declare this somewhere?

+    prefs::kSigninAllowed,
+  },
+  {
     managed_users::kUserName,
     prefs::kProfileName,
   },
 };
 
 }  // namespace
 
 SupervisedUserPrefStore::SupervisedUserPrefStore(
     ManagedUserSettingsService* managed_user_settings_service)
     : weak_ptr_factory_(this) {
@@ skipping 61 matching lines @@
   std::vector<std::string> changed_prefs;
   prefs_->GetDifferingKeys(old_prefs.get(), &changed_prefs);
 
   // Send out change notifications.
   for (std::vector<std::string>::const_iterator pref(changed_prefs.begin());
        pref != changed_prefs.end();
        ++pref) {
     FOR_EACH_OBSERVER(Observer, observers_, OnPrefValueChanged(*pref));
   }
 }