Add to be fetched files instead of DriveMetadataStore.batch_sync_origins_

chrome/browser/sync_file_system/drive_file_sync_service.h

Index: chrome/browser/sync_file_system/drive_file_sync_service.h
diff --git a/chrome/browser/sync_file_system/drive_file_sync_service.h b/chrome/browser/sync_file_system/drive_file_sync_service.h
index c4a6689f04d8fc45179f8e966a0873a291becac6..2a8698ad4864bed846d5142ff67ebce468d14c7e 100644
--- a/chrome/browser/sync_file_system/drive_file_sync_service.h
+++ b/chrome/browser/sync_file_system/drive_file_sync_service.h
@@ -239,6 +239,7 @@ class DriveFileSyncService : public RemoteFileSyncService,
   void DidGetDirectoryContentForBatchSync(
       const SyncStatusCallback& callback,
       const GURL& origin,
+      const std::string& resource_id,
       int64 largest_changestamp,
       google_apis::GDataErrorCode error,
       scoped_ptr<google_apis::ResourceList> feed);
@@ -397,7 +398,7 @@ class DriveFileSyncService : public RemoteFileSyncService,
 
   int64 largest_fetched_changestamp_;
 
-  std::set<GURL> pending_batch_sync_origins_;
+  std::map<GURL, std::string> pending_batch_sync_origins_;
 
   // Is set to true when there's a fair possibility that we have some
   // remote changes that haven't been fetched yet.