Implement DeleteFile and DeleteDirectory.

components/storage_monitor/test_media_transfer_protocol_manager_linux.h

 // 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.
 
 #ifndef COMPONENTS_STORAGE_MONITOR_TEST_MEDIA_TRANSFER_PROTOCOL_MANAGER_LINUX_H_
 #define COMPONENTS_STORAGE_MONITOR_TEST_MEDIA_TRANSFER_PROTOCOL_MANAGER_LINUX_H_
 
 #include "device/media_transfer_protocol/media_transfer_protocol_manager.h"
 
 namespace storage_monitor {
@@ skipping 11 matching lines @@
   void RemoveObserver(Observer* observer) override;
   const std::vector<std::string> GetStorages() const override;
   const MtpStorageInfo* GetStorageInfo(
       const std::string& storage_name) const override;
   void OpenStorage(const std::string& storage_name,
                    const std::string& mode,
                    const OpenStorageCallback& callback) override;
   void CloseStorage(const std::string& storage_handle,
                     const CloseStorageCallback& callback) override;
   void ReadDirectory(const std::string& storage_handle,
-                     uint32 file_id,
+                     const uint32 file_id,
+                     const size_t max_size,
                      const ReadDirectoryCallback& callback) override;
   void ReadFileChunk(const std::string& storage_handle,
                      uint32 file_id,
                      uint32 offset,
                      uint32 count,
                      const ReadFileCallback& callback) override;
   void GetFileInfo(const std::string& storage_handle,
                    uint32 file_id,
                    const GetFileInfoCallback& callback) override;
   void CopyFileFromLocal(const std::string& storage_handle,
                          const int source_file_descriptor,
                          const uint32 parent_id,
                          const std::string& file_name,
                          const CopyFileFromLocalCallback& callback) override;
+  void DeleteObject(const std::string& storage_handle,
+                    const uint32 object_id,
+                    const DeleteObjectCallback& callback) override;
 
   DISALLOW_COPY_AND_ASSIGN(TestMediaTransferProtocolManagerLinux);
 };
 
 }  // namespace storage_monitor
 
 #endif  // COMPONENTS_STORAGE_MONITOR_TEST_MEDIA_TRANSFER_PROTOCOL_MANAGER_LINUX_H_