Implement DeleteFile and DeleteDirectory.

chrome/browser/media_galleries/win/mtp_device_delegate_impl_win.h

 // Copyright (c) 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_MEDIA_GALLERIES_WIN_MTP_DEVICE_DELEGATE_IMPL_WIN_H_
 #define CHROME_BROWSER_MEDIA_GALLERIES_WIN_MTP_DEVICE_DELEGATE_IMPL_WIN_H_
 
 #include <queue>
 
 #include "base/callback.h"
@@ skipping 92 matching lines @@
       const base::FilePath& local_path,
       const CreateSnapshotFileSuccessCallback& success_callback,
       const ErrorCallback& error_callback) override;
   virtual bool IsStreaming() override;
   virtual void ReadBytes(const base::FilePath& device_file_path,
                          const scoped_refptr<net::IOBuffer>& buf,
                          int64 offset,
                          int buf_len,
                          const ReadBytesSuccessCallback& success_callback,
                          const ErrorCallback& error_callback) override;
-  bool IsReadOnly() override;
+  bool IsReadOnly() const override;
   void CopyFileFromLocal(
       const base::FilePath& source_file_path,
       const base::FilePath& device_file_path,
       const CopyFileFromLocalSuccessCallback& success_callback,
       const ErrorCallback& error_callback) override;
+  void DeleteFile(const base::FilePath& file_path,
+                  const DeleteFileSuccessCallback& success_callback,
+                  const ErrorCallback& error_callback) override;
+  void DeleteDirectory(const base::FilePath& file_path,
+                       const DeleteDirectorySuccessCallback& success_callback,
+                       const ErrorCallback& error_callback) override;
   virtual void CancelPendingTasksAndDeleteDelegate() override;
 
   // Ensures the device is initialized for communication by doing a
   // call-and-reply to a blocking pool thread. |task_info.task| runs on a
   // blocking pool thread and |task_info.reply| runs on the IO thread.
   //
   // If the device is already initialized, post the |task_info.task|
   // immediately on a blocking pool thread.
   //
   // If the device is uninitialized, store the |task_info| in a pending task
@@ skipping 91 matching lines @@
   // Used to make sure only one task is in progress at any time.
   bool task_in_progress_;
 
   // For callbacks that may run after destruction.
   base::WeakPtrFactory<MTPDeviceDelegateImplWin> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MTPDeviceDelegateImplWin);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_WIN_MTP_DEVICE_DELEGATE_IMPL_WIN_H_