[SyncFS] Make GetOriginStatusMap asynchronous

chrome/browser/sync_file_system/sync_file_system_service.h

Index: chrome/browser/sync_file_system/sync_file_system_service.h
diff --git a/chrome/browser/sync_file_system/sync_file_system_service.h b/chrome/browser/sync_file_system/sync_file_system_service.h
index 97f794bd2de5866e0706646491be52574af990d0..03288ec086dbcccc9a9e9078813953abcbafd14e 100644
--- a/chrome/browser/sync_file_system/sync_file_system_service.h
+++ b/chrome/browser/sync_file_system/sync_file_system_service.h
@@ -59,7 +59,8 @@ class SyncFileSystemService
       const SyncStatusCallback& callback);
 
   SyncServiceState GetSyncServiceState();
-  void GetExtensionStatusMap(std::map<GURL, std::string>* status_map);
+  void GetExtensionStatusMap(
+      const RemoteFileSyncService::StatusMapCallback& callback);
   void DumpFiles(const GURL& origin, const DumpFilesCallback& callback);
   void DumpDatabase(const DumpFilesCallback& callback);
 
@@ -113,6 +114,14 @@ class SyncFileSystemService
                          scoped_ptr<base::ListValue> v1list,
                          scoped_ptr<base::ListValue> v2list);
 
+  void DidGetExtensionStatusMap(
+      const RemoteFileSyncService::StatusMapCallback& callback,
+      const RemoteFileSyncService::OriginStatusMap& status_map);
+  void DidGetV2ExtensionStatusMap(
+      const RemoteFileSyncService::StatusMapCallback& callback,
+      const RemoteFileSyncService::OriginStatusMap& status_map_v1,
+      const RemoteFileSyncService::OriginStatusMap& status_map_v2);
+
   // Overrides sync_enabled_ setting. This should be called only by tests.
   void SetSyncEnabledForTesting(bool enabled);