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

Source/web/WebDragData.cpp

 /*
  * Copyright (C) 2009 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 81 matching lines @@
         if (originalItem->kind() == DataObjectItem::StringKind) {
             item.storageType = Item::StorageTypeString;
             item.stringType = originalItem->type();
             item.stringData = originalItem->getAsString();
         } else if (originalItem->kind() == DataObjectItem::FileKind) {
             if (originalItem->sharedBuffer()) {
                 item.storageType = Item::StorageTypeBinaryData;
                 item.binaryData = originalItem->sharedBuffer();
             } else if (originalItem->isFilename()) {
                 item.storageType = Item::StorageTypeFilename;
-                RefPtr<WebCore::Blob> blob = originalItem->getAsFile();
+                RefPtrWillBeRawPtr<WebCore::Blob> blob = originalItem->getAsFile();
                 if (blob->isFile()) {
                     File* file = toFile(blob.get());
                     item.filenameData = file->path();
                     item.displayNameData = file->name();
                 } else
                     ASSERT_NOT_REACHED();
             } else
                 ASSERT_NOT_REACHED();
         } else
             ASSERT_NOT_REACHED();
@@ skipping 42 matching lines @@
 }
 
 void WebDragData::setFilesystemId(const WebString& filesystemId)
 {
     // The ID is an opaque string, given by and validated by chromium port.
     ensureMutable();
     DraggedIsolatedFileSystem::provideTo(*m_private.get(), DraggedIsolatedFileSystem::supplementName(), DraggedIsolatedFileSystem::create(filesystemId));
 }
 
 } // namespace blink