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

chrome/browser/chromeos/fileapi/file_system_backend.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/fileapi/file_system_backend.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 265 matching lines @@
 
   if (!IsAccessAllowed(url)) {
     *error_code = base::File::FILE_ERROR_SECURITY;
     return NULL;
   }
 
   if (url.type() == storage::kFileSystemTypeDeviceMediaAsFileStorage) {
     // MTP file operations run on MediaTaskRunner.
     return storage::FileSystemOperation::Create(
         url, context,
-        base::WrapUnique(new storage::FileSystemOperationContext(
-            context, MediaFileSystemBackend::MediaTaskRunner().get())));
+        base::MakeUnique<storage::FileSystemOperationContext>(
+            context, MediaFileSystemBackend::MediaTaskRunner().get()));
   }
 
   DCHECK(url.type() == storage::kFileSystemTypeNativeLocal ||
          url.type() == storage::kFileSystemTypeRestrictedNativeLocal ||
          url.type() == storage::kFileSystemTypeDrive ||
          url.type() == storage::kFileSystemTypeProvided);
   return storage::FileSystemOperation::Create(
       url, context,
-      base::WrapUnique(new storage::FileSystemOperationContext(context)));
+      base::MakeUnique<storage::FileSystemOperationContext>(context));
 }
 
 bool FileSystemBackend::SupportsStreaming(
     const storage::FileSystemURL& url) const {
   return url.type() == storage::kFileSystemTypeDrive ||
          url.type() == storage::kFileSystemTypeProvided ||
          url.type() == storage::kFileSystemTypeDeviceMediaAsFileStorage;
 }
 
 bool FileSystemBackend::HasInplaceCopyImplementation(
@@ skipping 117 matching lines @@
     const base::FilePath& entry_path) const {
   base::FilePath virtual_path;
   if (!GetVirtualPath(entry_path, &virtual_path))
     return storage::FileSystemURL();
 
   return context->CreateCrackedFileSystemURL(
       GURL() /* origin */, storage::kFileSystemTypeExternal, virtual_path);
 }
 
 }  // namespace chromeos