Implement support for disabling sync through configuration management.

chrome/common/pref_names.h

 // Copyright (c) 2010 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_
 
 #include "build/build_config.h"
@@ skipping 299 matching lines @@
 extern const wchar_t kSyncLastSyncedTime[];
 extern const wchar_t kSyncHasSetupCompleted[];
 extern const wchar_t kKeepEverythingSynced[];
 extern const wchar_t kSyncBookmarks[];
 extern const wchar_t kSyncPasswords[];
 extern const wchar_t kSyncPreferences[];
 extern const wchar_t kSyncAutofill[];
 extern const wchar_t kSyncThemes[];
 extern const wchar_t kSyncTypedUrls[];
 extern const wchar_t kSyncExtensions[];
+extern const wchar_t kSyncManaged[];
 
 extern const wchar_t kWebAppCreateOnDesktop[];
 extern const wchar_t kWebAppCreateInAppsMenu[];
 extern const wchar_t kWebAppCreateInQuickLaunchBar[];
 
 extern const wchar_t kGeolocationAccessToken[];
 extern const wchar_t kGeolocationDefaultContentSetting[];
 extern const wchar_t kGeolocationContentSettings[];
 
 extern const wchar_t kLoginDatabaseMigrated[];
 
 extern const wchar_t kCloudPrintServiceURL[];
 extern const wchar_t kCloudPrintProxyId[];
 extern const wchar_t kCloudPrintAuthToken[];
 extern const wchar_t kCloudPrintXMPPAuthToken[];
 extern const wchar_t kCloudPrintEmail[];
 extern const wchar_t kCloudPrintPrintSystemSettings[];
 
 extern const wchar_t kNoProxyServer[];
 extern const wchar_t kProxyAutoDetect[];
 extern const wchar_t kProxyServer[];
 extern const wchar_t kProxyPacUrl[];
 extern const wchar_t kProxyBypassList[];
 
 extern const wchar_t kRegisteredBackgroundContents[];
 
 }  // namespace prefs
 
 #endif  // CHROME_COMMON_PREF_NAMES_H_