Revert of Upgrade Blink to milliseconds-based last modified filetimes, part 3.

Source/modules/filesystem/FileSystemCallbacks.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 27 matching lines @@
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class DOMFileSystemBase;
 class DirectoryReaderBase;
 class EntriesCallback;
 class EntryCallback;
 class ErrorCallback;
 class FileCallback;
-class FileMetadata;
+struct FileMetadata;
 class FileSystemCallback;
 class FileWriterBase;
 class FileWriterBaseCallback;
 class MetadataCallback;
 class ExecutionContext;
 class VoidCallback;
 
 class FileSystemCallbacksBase : public AsyncFileSystemCallbacks {
 public:
     virtual ~FileSystemCallbacksBase();
@@ skipping 116 matching lines @@
     virtual void didSucceed() override;
 
 private:
     VoidCallbacks(VoidCallback*, ErrorCallback*, ExecutionContext*, DOMFileSystemBase*);
     Persistent<VoidCallback> m_successCallback;
 };
 
 } // namespace blink
 
 #endif // FileSystemCallbacks_h