Temporarily disable extensions and sync while a profile is locked - Profiles Approach

extensions/browser/extension_prefs.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 "extensions/browser/extension_prefs.h"
 
 #include <iterator>
 
 #include "base/command_line.h"
 #include "base/prefs/pref_notifier.h"
@@ skipping 1491 matching lines @@
       continue;
 
     scoped_ptr<ExtensionInfo> info = GetDelayedInstallInfo(extension_id.key());
     if (info)
       extensions_info->push_back(linked_ptr<ExtensionInfo>(info.release()));
   }
 
   return extensions_info.Pass();
 }
 
+bool ExtensionPrefs::IsExtensionBlocked(const std::string& id) const {
+  return DoesExtensionHaveState(id, Extension::BLOCKED);
+}
+
 bool ExtensionPrefs::IsEphemeralApp(const std::string& extension_id) const {
   if (ReadPrefAsBooleanAndReturn(extension_id, kPrefEphemeralApp))
     return true;
 
   // Ephemerality was previously stored in the creation flags, so we must also
   // check it for backcompatibility.
   return (GetCreationFlags(extension_id) & Extension::IS_EPHEMERAL) != 0;
 }
 
 void ExtensionPrefs::OnEphemeralAppPromoted(const std::string& extension_id) {
@@ skipping 579 matching lines @@
   extension_pref_value_map_->RegisterExtension(
       extension_id, install_time, is_enabled, is_incognito_enabled);
 
   FOR_EACH_OBSERVER(
       ExtensionPrefsObserver,
       observer_list_,
       OnExtensionRegistered(extension_id, install_time, is_enabled));
 }
 
 }  // namespace extensions