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

Source/core/fileapi/FileReader.cpp

Index: Source/core/fileapi/FileReader.cpp
diff --git a/Source/core/fileapi/FileReader.cpp b/Source/core/fileapi/FileReader.cpp
index 2e0109854e8ab9b41c05500c9ffc135dd7088b96..5fb2467de1b2eaed402fc5dc6f6667e90f7f25cc 100644
--- a/Source/core/fileapi/FileReader.cpp
+++ b/Source/core/fileapi/FileReader.cpp
@@ -132,9 +132,9 @@ private:
     HashSet<FileReader*> m_runningReaders;
 };
 
-PassRefPtr<FileReader> FileReader::create(ExecutionContext* context)
+PassRefPtrWillBeRawPtr<FileReader> FileReader::create(ExecutionContext* context)
 {
-    RefPtr<FileReader> fileReader(adoptRef(new FileReader(context)));
+    RefPtrWillBeRawPtr<FileReader> fileReader(adoptRefWillBeRefCountedGarbageCollected(new FileReader(context)));
     fileReader->suspendIfNeeded();
     return fileReader.release();
 }
@@ -404,4 +404,9 @@ String FileReader::stringResult()
     return m_loader->stringResult();
 }
 
+void FileReader::trace(Visitor* visitor)
+{
+    visitor->trace(m_error);
+}
+
 } // namespace WebCore