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

chrome/browser/chromeos/file_system_provider/operations/operation.cc

 // Copyright 2014 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/file_system_provider/operations/operation.h"
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_info.h"
@@ skipping 31 matching lines @@
 
 void Operation::SetDispatchEventImplForTesting(
     const DispatchEventImplCallback& callback) {
   dispatch_event_impl_ = callback;
 }
 
 bool Operation::SendEvent(int request_id,
                           extensions::events::HistogramValue histogram_value,
                           const std::string& event_name,
                           std::unique_ptr<base::ListValue> event_args) {
-  return dispatch_event_impl_.Run(base::WrapUnique(new extensions::Event(
-      histogram_value, event_name, std::move(event_args))));
+  return dispatch_event_impl_.Run(base::MakeUnique<extensions::Event>(
+      histogram_value, event_name, std::move(event_args)));
 }
 
 }  // namespace operations
 }  // namespace file_system_provider
 }  // namespace chromeos