drive: Call OnDirectoryChanged from EntryRevertPerformer

chrome/browser/chromeos/drive/sync/remove_performer.h

Index: chrome/browser/chromeos/drive/sync/remove_performer.h
diff --git a/chrome/browser/chromeos/drive/sync/remove_performer.h b/chrome/browser/chromeos/drive/sync/remove_performer.h
index cab174968e06c85a53adc37115be24964d6009c2..808ad54cf76fd37c59fbdbe362efeb8d72775427 100644
--- a/chrome/browser/chromeos/drive/sync/remove_performer.h
+++ b/chrome/browser/chromeos/drive/sync/remove_performer.h
@@ -25,6 +25,10 @@ namespace drive {
 class JobScheduler;
 class ResourceEntry;
 
+namespace file_system {
+class OperationObserver;
+}  // namespace file_system
+
 namespace internal {
 
 class EntryRevertPerformer;
@@ -36,6 +40,7 @@ class ResourceMetadata;
 class RemovePerformer {
  public:
   RemovePerformer(base::SequencedTaskRunner* blocking_task_runner,
+                  file_system::OperationObserver* observer,
                   JobScheduler* scheduler,
                   ResourceMetadata* metadata);
   ~RemovePerformer();