Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/webui/sync_file_system_internals/file_metadata_handler.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_SYNC_FILE_SYSTEM_INTERNALS_FILE_METADATA_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_SYNC_FILE_SYSTEM_INTERNALS_FILE_METADATA_HANDLER_H_
 
+#include <memory>
+
 #include "base/compiler_specific.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/sync_file_system/remote_file_sync_service.h"
 #include "chrome/browser/sync_file_system/sync_status_code.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
 class Profile;
 
 namespace syncfs_internals {
 
 // This class handles messages from WebUI page of chrome://syncfs-internals/
@@ skipping 16 matching lines @@
   void DidGetFileMetadata(const base::ListValue& files);
 
   Profile* profile_;
   base::WeakPtrFactory<FileMetadataHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FileMetadataHandler);
 };
 }  // namespace syncfs_internals
 
 #endif  // CHROME_BROWSER_UI_WEBUI_SYNC_FILE_SYSTEM_INTERNALS_FILE_METADATA_HANDLER_H_