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

Source/modules/webmidi/MIDIAccessPromise.cpp

Index: Source/modules/webmidi/MIDIAccessPromise.cpp
diff --git a/Source/modules/webmidi/MIDIAccessPromise.cpp b/Source/modules/webmidi/MIDIAccessPromise.cpp
index ca27e0ea1dc3cc3adad297ae8ae469384fef4ba6..86a39d78ca8dabee9776b308672c90e768c23d9a 100644
--- a/Source/modules/webmidi/MIDIAccessPromise.cpp
+++ b/Source/modules/webmidi/MIDIAccessPromise.cpp
@@ -85,7 +85,7 @@ void MIDIAccessPromise::fulfill()
     }
 }
 
-void MIDIAccessPromise::reject(PassRefPtr<DOMError> error)
+void MIDIAccessPromise::reject(PassRefPtrWillBeRawPtr<DOMError> error)
 {
     if (m_state == Pending) {
         if (m_errorCallback) {
@@ -139,6 +139,7 @@ void MIDIAccessPromise::clear()
 
 void MIDIAccessPromise::trace(Visitor* visitor)
 {
+    visitor->trace(m_error);
     visitor->trace(m_access);
 }