Notify users about certain changes in installed extensions.

chrome/common/pref_names.h

 // Copyright (c) 2011 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.
 
 // Constants for the names of various preferences, for easier changing.
 
 #ifndef CHROME_COMMON_PREF_NAMES_H_
 #define CHROME_COMMON_PREF_NAMES_H_
 #pragma once
 
@@ skipping 410 matching lines @@
 extern const char kDisableExtensions[];
 extern const char kDisablePluginFinder[];
 extern const char kBrowserActionContainerWidth[];
 
 extern const char kLastExtensionsUpdateCheck[];
 extern const char kNextExtensionsUpdateCheck[];
 
 extern const char kExtensionInstallAllowList[];
 extern const char kExtensionInstallDenyList[];
 
+extern const char kExtensionAlertsInitializedPref[];
+
 extern const char kExtensionInstallForceList[];
 
 extern const char kExtensionBlacklistUpdateVersion[];
 
 extern const char kExtensionSidebarWidth[];
 
 extern const char kNTPTipsResourceServer[];
 
 extern const char kNTP4IntroDisplayCount[];
 extern const char kNTPMostVisitedURLsBlacklist[];
@@ skipping 147 matching lines @@
 
 extern const char kUserCreatedLoginItem[];
 extern const char kBackgroundModeEnabled[];
 
 extern const char kDevicePolicyRefreshRate[];
 extern const char kUserPolicyRefreshRate[];
 
 }  // namespace prefs
 
 #endif  // CHROME_COMMON_PREF_NAMES_H_