Clean up forward declarations in Source/modules

Source/modules/filesystem/Entry.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 22 matching lines @@
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "modules/filesystem/DOMFileSystem.h"
 #include "modules/filesystem/EntryBase.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class DirectoryEntry;
 class EntryCallback;
-class EntrySync;
 class ErrorCallback;
 class MetadataCallback;
 class VoidCallback;
 
 class Entry : public EntryBase, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
     DOMFileSystem* filesystem() const { return static_cast<DOMFileSystem*>(m_fileSystem.get()); }
 
     void getMetadata(MetadataCallback* successCallback = nullptr, ErrorCallback* = nullptr);
     void moveTo(DirectoryEntry* parent, const String& name = String(), EntryCallback* successCallback = nullptr, ErrorCallback* = nullptr) const;
     void copyTo(DirectoryEntry* parent, const String& name = String(), EntryCallback* successCallback = nullptr, ErrorCallback* = nullptr) const;
     void remove(VoidCallback* successCallback = nullptr, ErrorCallback* = nullptr) const;
     void getParent(EntryCallback* successCallback = nullptr, ErrorCallback* = nullptr) const;
 
     virtual void trace(Visitor*) override;
 
 protected:
     Entry(DOMFileSystemBase*, const String& fullPath);
 };
 
 } // namespace blink
 
 #endif // Entry_h