Separate the syncing of extension settings and app settings into separate data

chrome/browser/sync/sync_prefs.cc

 // 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.
 
 #include "chrome/browser/sync/sync_prefs.h"
 
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
 #include "base/values.h"
 #include "build/build_config.h"
@@ skipping 331 matching lines @@
     case syncable::AUTOFILL_PROFILE:
       return prefs::kSyncAutofillProfile;
     case syncable::THEMES:
       return prefs::kSyncThemes;
     case syncable::TYPED_URLS:
       return prefs::kSyncTypedUrls;
     case syncable::EXTENSION_SETTINGS:
       return prefs::kSyncExtensionSettings;
     case syncable::EXTENSIONS:
       return prefs::kSyncExtensions;
+    case syncable::APP_SETTINGS:
+      return prefs::kSyncAppSettings;
     case syncable::APPS:
       return prefs::kSyncApps;
     case syncable::SEARCH_ENGINES:
       return prefs::kSyncSearchEngines;
     case syncable::SESSIONS:
       return prefs::kSyncSessions;
     case syncable::APP_NOTIFICATIONS:
       return prefs::kSyncAppNotifications;
     default:
       break;
@@ skipping 112 matching lines @@
   const char* pref_name = GetPrefNameForDataType(type);
   if (!pref_name) {
     NOTREACHED();
     return;
   }
   pref_service_->SetBoolean(pref_name, is_preferred);
   pref_service_->ScheduleSavePersistentPrefs();
 }
 
 }  // namespace browser_sync