Wait for parent directory sync before performing server-side copy

chrome/browser/chromeos/drive/file_system.cc

 // Copyright (c) 2012 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/file_system.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/chromeos/drive/change_list_loader.h"
@@ skipping 809 matching lines @@
     file_system::DriveSyncErrorType type,
     const base::FilePath* file_path,
     FileError error) {
   if (error != FILE_ERROR_OK)
     return;
   FOR_EACH_OBSERVER(FileSystemObserver,
                     observers_,
                     OnDriveSyncError(type, *file_path));
 }
 
+bool FileSystem::WaitForSyncComplete(const std::string& local_id,
+                                     const FileOperationCallback& callback) {
+  return sync_client_->WaitForUpdateTaskToComplete(local_id, callback);
+}
+
 void FileSystem::OnDirectoryReloaded(const base::FilePath& directory_path) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   FOR_EACH_OBSERVER(
       FileSystemObserver, observers_, OnDirectoryChanged(directory_path));
 }
 
 void FileSystem::OnFileChanged(const FileChange& changed_files) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
@@ skipping 144 matching lines @@
       FROM_HERE,
       base::Bind(&GetPathFromResourceIdOnBlockingPool,
                  resource_metadata_,
                  resource_id,
                  file_path),
       base::Bind(&GetPathFromResourceIdAfterGetPath,
                  base::Owned(file_path),
                  callback));
 }
 }  // namespace drive