Add Sync datatype for shared managed user settings.

chrome/common/pref_names.h

 // Copyright (c) 2012 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 <stddef.h>
@@ skipping 607 matching lines @@
 extern const char kSyncAutofillProfile[];
 extern const char kSyncAutofill[];
 extern const char kSyncBookmarks[];
 extern const char kSyncDictionary[];
 extern const char kSyncExtensionSettings[];
 extern const char kSyncExtensions[];
 extern const char kSyncFaviconImages[];
 extern const char kSyncFaviconTracking[];
 extern const char kSyncHistoryDeleteDirectives[];
 extern const char kSyncManagedUserSettings[];
+extern const char kSyncManagedUserSharedSettings[];
 extern const char kSyncManagedUsers[];
 extern const char kSyncArticles[];
 extern const char kSyncPasswords[];
 extern const char kSyncPreferences[];
 extern const char kSyncPriorityPreferences[];
 extern const char kSyncSearchEngines[];
 extern const char kSyncSessions[];
 extern const char kSyncSyncedNotifications[];
 extern const char kSyncTabs[];
 extern const char kSyncThemes[];
@@ skipping 312 matching lines @@
 #if defined(OS_WIN)
 extern const char kOsPasswordBlank[];
 extern const char kOsPasswordLastChanged[];
 #endif
 
 extern const char kQuickCheckEnabled[];
 
 }  // namespace prefs
 
 #endif  // CHROME_COMMON_PREF_NAMES_H_