Oilpan: move core/fileapi to oilpan's heap.

Source/core/clipboard/DataObjectItem.h

 /*
  * 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 34 matching lines @@
 
 class DataObjectItem : public RefCountedWillBeGarbageCollectedFinalized<DataObjectItem> {
     DECLARE_GC_INFO;
 public:
     enum Kind {
         StringKind,
         FileKind
     };
 
     static PassRefPtrWillBeRawPtr<DataObjectItem> createFromString(const String& type, const String& data);
-    static PassRefPtrWillBeRawPtr<DataObjectItem> createFromFile(PassRefPtr<File>);
+    static PassRefPtrWillBeRawPtr<DataObjectItem> createFromFile(PassRefPtrWillBeRawPtr<File>);
     static PassRefPtrWillBeRawPtr<DataObjectItem> createFromURL(const String& url, const String& title);
     static PassRefPtrWillBeRawPtr<DataObjectItem> createFromHTML(const String& html, const KURL& baseURL);
     static PassRefPtrWillBeRawPtr<DataObjectItem> createFromSharedBuffer(const String& filename, PassRefPtr<SharedBuffer>);
     static PassRefPtrWillBeRawPtr<DataObjectItem> createFromPasteboard(const String& type, uint64_t sequenceNumber);
 
     Kind kind() const { return m_kind; }
     String type() const { return m_type; }
     String getAsString() const;
-    PassRefPtr<Blob> getAsFile() const;
+    PassRefPtrWillBeRawPtr<Blob> getAsFile() const;
 
     // Used to support legacy DataTransfer APIs and renderer->browser serialization.
     PassRefPtr<SharedBuffer> sharedBuffer() const { return m_sharedBuffer; }
     String title() const { return m_title; }
     KURL baseURL() const { return m_baseURL; }
     bool isFilename() const;
 
-    void trace(Visitor*) { }
+    void trace(Visitor*);
 
 private:
     enum DataSource {
         PasteboardSource,
         InternalSource,
     };
 
     DataObjectItem(Kind, const String& type);
     DataObjectItem(Kind, const String& type, uint64_t sequenceNumber);
 
     DataSource m_source;
     Kind m_kind;
     String m_type;
 
     String m_data;
-    RefPtr<File> m_file;
+    RefPtrWillBeMember<File> m_file;
     RefPtr<SharedBuffer> m_sharedBuffer;
     // Optional metadata. Currently used for URL, HTML, and dragging files in.
     String m_title;
     KURL m_baseURL;
 
     uint64_t m_sequenceNumber; // Only valid when m_source == PasteboardSource
 };
 
 } // namespace WebCore
 
 #endif // DataObjectItem_h