Adds callbacks to notify progress into Copy's API.

chrome/browser/sync_file_system/local/canned_syncable_file_system.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/sync_file_system/local/canned_syncable_file_system.h"
 
 #include <algorithm>
 #include <iterator>
 
 #include "base/bind.h"
@@ skipping 530 matching lines @@
     const StatusCallback& callback) {
   EXPECT_TRUE(is_filesystem_opened_);
   operation_runner()->CreateFile(url, false /* exclusive */, callback);
 }
 
 void CannedSyncableFileSystem::DoCopy(
     const FileSystemURL& src_url,
     const FileSystemURL& dest_url,
     const StatusCallback& callback) {
   EXPECT_TRUE(is_filesystem_opened_);
-  operation_runner()->Copy(src_url, dest_url, callback);
+  operation_runner()->Copy(
+      src_url, dest_url,
+      fileapi::FileSystemOperationRunner::CopyProgressCallback(), callback);
 }
 
 void CannedSyncableFileSystem::DoMove(
     const FileSystemURL& src_url,
     const FileSystemURL& dest_url,
     const StatusCallback& callback) {
   EXPECT_TRUE(is_filesystem_opened_);
   operation_runner()->Move(src_url, dest_url, callback);
 }
 
@@ skipping 108 matching lines @@
   sync_status_ = status;
   base::MessageLoop::current()->Quit();
 }
 
 void CannedSyncableFileSystem::InitializeSyncStatusObserver() {
   ASSERT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
   backend()->sync_context()->sync_status()->AddObserver(this);
 }
 
 }  // namespace sync_file_system