Oilpan: Remove GC_INFO_{DEFINE,DECLARE} macros

Source/core/clipboard/DataObjectItem.cpp

 /*
  * Copyright (C) 2011 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 21 matching lines @@
 #include "core/clipboard/DataObjectItem.h"
 
 #include "core/clipboard/Pasteboard.h"
 #include "core/fileapi/Blob.h"
 #include "platform/clipboard/ClipboardMimeTypes.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebClipboard.h"
 
 namespace WebCore {
 
-DEFINE_GC_INFO(DataObjectItem);
-
 PassRefPtrWillBeRawPtr<DataObjectItem> DataObjectItem::createFromString(const String& type, const String& data)
 {
     RefPtrWillBeRawPtr<DataObjectItem> item = adoptRefWillBeNoop(new DataObjectItem(StringKind, type));
     item->m_data = data;
     return item.release();
 }
 
 PassRefPtrWillBeRawPtr<DataObjectItem> DataObjectItem::createFromFile(PassRefPtr<File> file)
 {
     RefPtrWillBeRawPtr<DataObjectItem> item = adoptRefWillBeNoop(new DataObjectItem(FileKind, file->type()));
@@ skipping 113 matching lines @@
 
 bool DataObjectItem::isFilename() const
 {
     // FIXME: https://bugs.webkit.org/show_bug.cgi?id=81261: When we properly support File dragout,
     // we'll need to make sure this works as expected for DragDataChromium.
     return m_kind == FileKind && m_file;
 }
 
 } // namespace WebCore