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

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 28 matching lines @@
 
 namespace WebCore {
 
 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)
+PassRefPtrWillBeRawPtr<DataObjectItem> DataObjectItem::createFromFile(PassRefPtrWillBeRawPtr<File> file)
 {
     RefPtrWillBeRawPtr<DataObjectItem> item = adoptRefWillBeNoop(new DataObjectItem(FileKind, file->type()));
     item->m_file = file;
     return item.release();
 }
 
 PassRefPtrWillBeRawPtr<DataObjectItem> DataObjectItem::createFromURL(const String& url, const String& title)
 {
     RefPtrWillBeRawPtr<DataObjectItem> item = adoptRefWillBeNoop(new DataObjectItem(StringKind, mimeTypeTextURIList));
     item->m_data = url;
@@ skipping 33 matching lines @@
 }
 
 DataObjectItem::DataObjectItem(Kind kind, const String& type, uint64_t sequenceNumber)
     : m_source(PasteboardSource)
     , m_kind(kind)
     , m_type(type)
     , m_sequenceNumber(sequenceNumber)
 {
 }
 
-PassRefPtr<Blob> DataObjectItem::getAsFile() const
+PassRefPtrWillBeRawPtr<Blob> DataObjectItem::getAsFile() const
 {
     if (kind() != FileKind)
         return nullptr;
 
     if (m_source == InternalSource) {
         if (m_file)
-            return m_file;
+            return m_file.get();
         ASSERT(m_sharedBuffer);
         // FIXME: This code is currently impossible--we never populate m_sharedBuffer when dragging
         // in. At some point though, we may need to support correctly converting a shared buffer
         // into a file.
         return nullptr;
     }
 
     ASSERT(m_source == PasteboardSource);
     if (type() == mimeTypeImagePng) {
         // FIXME: This is pretty inefficient. We copy the data from the browser
@@ skipping 42 matching lines @@
     return blink::Platform::current()->clipboard()->sequenceNumber(buffer) == m_sequenceNumber ? data : String();
 }
 
 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;
 }
 
+void DataObjectItem::trace(Visitor* visitor)
+{
+    visitor->trace(m_file);
+}
+
 } // namespace WebCore