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 d1f970158e0cc78b09e2580658f302fd976eefd7..12d84dc7f8f9c1f9b60517c4694a29123850e100 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(adoptRefCountedWillBeRefCountedGarbageCollected(new FileReader(context)));
     fileReader->suspendIfNeeded();
     return fileReader.release();
 }
@@ -394,4 +394,10 @@ String FileReader::stringResult()
     return m_loader->stringResult();
 }
 
+void FileReader::trace(Visitor* visitor)
+{
+    visitor->trace(m_blob);
+    visitor->trace(m_error);
+}
+
 } // namespace WebCore