arc: Empty implementation of ARC content file system

chrome/browser/chromeos/arc/fileapi/arc_content_file_system_async_file_util.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
+// Copyright 2016 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_CHROMEOS_DRIVE_FILEAPI_ASYNC_FILE_UTIL_H_
-#define CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_ASYNC_FILE_UTIL_H_
+#ifndef CHROME_BROWSER_CHROMEOS_ARC_FILEAPI_ARC_CONTENT_FILE_SYSTEM_ASYNC_FILE_UTIL_H_
+#define CHROME_BROWSER_CHROMEOS_ARC_FILEAPI_ARC_CONTENT_FILE_SYSTEM_ASYNC_FILE_UTIL_H_
 
-#include <stdint.h>
-
-#include <memory>
-
-#include "base/callback.h"
-#include "base/macros.h"
 #include "storage/browser/fileapi/async_file_util.h"
 
-namespace drive {
+namespace arc {
 
-class FileSystemInterface;
-
-namespace internal {
-
-// The implementation of storage::AsyncFileUtil for Drive File System.
-class AsyncFileUtil : public storage::AsyncFileUtil {
+class ArcContentFileSystemAsyncFileUtil : public storage::AsyncFileUtil {
  public:
-  AsyncFileUtil();
-  ~AsyncFileUtil() override;
+  ArcContentFileSystemAsyncFileUtil();
+  ~ArcContentFileSystemAsyncFileUtil() override;
 
   // storage::AsyncFileUtil overrides.
   void CreateOrOpen(
       std::unique_ptr<storage::FileSystemOperationContext> context,
       const storage::FileSystemURL& url,
       int file_flags,
       const CreateOrOpenCallback& callback) override;
   void EnsureFileExists(
       std::unique_ptr<storage::FileSystemOperationContext> context,
       const storage::FileSystemURL& url,
@@ skipping 49 matching lines @@
   void DeleteRecursively(
       std::unique_ptr<storage::FileSystemOperationContext> context,
       const storage::FileSystemURL& url,
       const StatusCallback& callback) override;
   void CreateSnapshotFile(
       std::unique_ptr<storage::FileSystemOperationContext> context,
       const storage::FileSystemURL& url,
       const CreateSnapshotFileCallback& callback) override;
 
  private:
-  DISALLOW_COPY_AND_ASSIGN(AsyncFileUtil);
+  DISALLOW_COPY_AND_ASSIGN(ArcContentFileSystemAsyncFileUtil);
 };
 
-}  // namespace internal
-}  // namespace drive
+}  // namespace arc
 
-#endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_ASYNC_FILE_UTIL_H_
+#endif  // CHROME_BROWSER_CHROMEOS_ARC_FILEAPI_ARC_CONTENT_FILE_SYSTEM_ASYNC_FILE_UTIL_H_