Re-write many calls to WrapUnique() with MakeUnique()

storage/browser/fileapi/isolated_file_system_backend.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 "storage/browser/fileapi/isolated_file_system_backend.h"
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
@@ skipping 92 matching lines @@
   DCHECK(error_code);
   *error_code = base::File::FILE_OK;
   return NULL;
 }
 
 FileSystemOperation* IsolatedFileSystemBackend::CreateFileSystemOperation(
     const FileSystemURL& url,
     FileSystemContext* context,
     base::File::Error* error_code) const {
   return FileSystemOperation::Create(
-      url, context, base::WrapUnique(new FileSystemOperationContext(context)));
+      url, context, base::MakeUnique<FileSystemOperationContext>(context));
 }
 
 bool IsolatedFileSystemBackend::SupportsStreaming(
     const storage::FileSystemURL& url) const {
   return false;
 }
 
 bool IsolatedFileSystemBackend::HasInplaceCopyImplementation(
     storage::FileSystemType type) const {
   DCHECK(type == kFileSystemTypeNativeLocal || type == kFileSystemTypeDragged ||
@@ skipping 38 matching lines @@
     FileSystemType type) const {
   return NULL;
 }
 
 const AccessObserverList* IsolatedFileSystemBackend::GetAccessObservers(
     FileSystemType type) const {
   return NULL;
 }
 
 }  // namespace storage