[sync] Automatic bootstrapping of Sync on Win 8 from cached credentials

chrome/browser/sync/profile_sync_service.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.
 
 #ifndef CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_
 #define CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_
 
 #include <list>
 #include <string>
 
@@ skipping 38 matching lines @@
 class ChangeProcessor;
 class DataTypeManager;
 class JsController;
 class SessionModelAssociator;
 
 namespace sessions { class SyncSessionSnapshot; }
 }
 
 namespace syncer {
 class BaseTransaction;
+class CredentialCacheService;
 struct SyncCredentials;
 struct UserShare;
 }
 
 namespace sync_pb {
 class EncryptedData;
 }  // namespace sync_pb
 
 // ProfileSyncService is the layer between browser subsystems like bookmarks,
 // and the sync backend.  Each subsystem is logically thought of as being
@@ skipping 740 matching lines @@
   // If |true|, there is setup UI visible so we should not start downloading
   // data types.
   bool setup_in_progress_;
 
   // The set of currently enabled sync experiments.
   syncer::Experiments current_experiments;
 
   // Factory the backend will use to build the SyncManager.
   syncer::SyncManagerFactory sync_manager_factory_;
 
+  // Used to share sync credentials between Metro and Desktop on Windows 8.
+  syncer::CredentialCacheService* credential_cache_service_;
+
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncService);
 };
 
 bool ShouldShowActionOnUI(
     const syncer::SyncProtocolError& error);
 
 
 #endif  // CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_