drive: Call OnDirectoryChanged from EntryRevertPerformer

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

 // Copyright 2013 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.
 
 #include "chrome/browser/chromeos/drive/sync/remove_performer.h"
 
 #include "base/sequenced_task_runner.h"
 #include "chrome/browser/chromeos/drive/drive.pb.h"
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #include "chrome/browser/chromeos/drive/job_scheduler.h"
@@ skipping 29 matching lines @@
       FROM_HERE,
       base::Bind(&ResourceMetadata::RemoveEntry,
                  base::Unretained(metadata), local_id),
       callback);
 }
 
 }  // namespace
 
 RemovePerformer::RemovePerformer(
     base::SequencedTaskRunner* blocking_task_runner,
+    file_system::OperationObserver* observer,
     JobScheduler* scheduler,
     ResourceMetadata* metadata)
     : blocking_task_runner_(blocking_task_runner),
       scheduler_(scheduler),
       metadata_(metadata),
       entry_revert_performer_(new EntryRevertPerformer(blocking_task_runner,
+                                                       observer,
                                                        scheduler,
                                                        metadata)),
       weak_ptr_factory_(this) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 }
 
 RemovePerformer::~RemovePerformer() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 }
 
@@ skipping 159 matching lines @@
 
   base::PostTaskAndReplyWithResult(
       blocking_task_runner_.get(),
       FROM_HERE,
       base::Bind(&UpdateLocalStateAfterUnparent, metadata_, local_id),
       callback);
 }
 
 }  // namespace internal
 }  // namespace drive