Implement DeleteFile and DeleteDirectory.

components/storage_monitor/test_media_transfer_protocol_manager_linux.cc

Index: components/storage_monitor/test_media_transfer_protocol_manager_linux.cc
diff --git a/components/storage_monitor/test_media_transfer_protocol_manager_linux.cc b/components/storage_monitor/test_media_transfer_protocol_manager_linux.cc
index 572c626f8b0aebef438f59a67aac774640bbbe8f..b52f4c42f7406beffe3924d86ef75af4c3f075b7 100644
--- a/components/storage_monitor/test_media_transfer_protocol_manager_linux.cc
+++ b/components/storage_monitor/test_media_transfer_protocol_manager_linux.cc
@@ -43,7 +43,8 @@ void TestMediaTransferProtocolManagerLinux::CloseStorage(
 
 void TestMediaTransferProtocolManagerLinux::ReadDirectory(
     const std::string& storage_handle,
-    uint32 file_id,
+    const uint32 file_id,
+    const size_t max_size,
     const ReadDirectoryCallback& callback) {
   callback.Run(std::vector<MtpFileEntry>(),
                false /* no more entries*/,
@@ -75,4 +76,11 @@ void TestMediaTransferProtocolManagerLinux::CopyFileFromLocal(
   callback.Run(true /* error */);
 }
 
+void TestMediaTransferProtocolManagerLinux::DeleteObject(
+    const std::string& storage_handle,
+    const uint32 object_id,
+    const DeleteObjectCallback& callback) {
+  callback.Run(true /* error */);
+}
+
 }  // namespace storage_monitor