Added function DeleteOriginDirectory to RemoteFileSyncService interface that removes the remote cop…

chrome/browser/sync_file_system/remote_file_sync_service.h

Index: chrome/browser/sync_file_system/remote_file_sync_service.h
diff --git a/chrome/browser/sync_file_system/remote_file_sync_service.h b/chrome/browser/sync_file_system/remote_file_sync_service.h
index ba02ff34993252d52d0f6f658212d8f4ad5f9ddb..c73abc28108a811d22b7fe450ed79aa254442c25 100644
--- a/chrome/browser/sync_file_system/remote_file_sync_service.h
+++ b/chrome/browser/sync_file_system/remote_file_sync_service.h
@@ -99,6 +99,11 @@ class RemoteFileSyncService {
       const GURL& origin,
       const SyncStatusCallback& callback) = 0;
 
+  // Deletes the |origin| directory from the remote backing service.
+  virtual void DeleteOriginDirectory(
+      const GURL& origin,
+      const SyncStatusCallback& callback) = 0;
+
   // Called by the sync engine to process one remote change.
   // After a change is processed |callback| will be called (to return
   // the control to the sync engine).