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 e4eb7ee8a23ed2349bae0397278d8d3e699266b3..b8c4e4c9ecd0638814c68833cf01efe57e8211c9 100644
--- a/Source/modules/webmidi/MIDIAccessPromise.cpp
+++ b/Source/modules/webmidi/MIDIAccessPromise.cpp
@@ -87,7 +87,7 @@ void MIDIAccessPromise::fulfill()
     }
 }
 
-void MIDIAccessPromise::reject(PassRefPtr<DOMError> error)
+void MIDIAccessPromise::reject(PassRefPtrWillBeRawPtr<DOMError> error)
 {
     if (m_state == Pending) {
         if (m_errorCallback) {
@@ -141,6 +141,7 @@ void MIDIAccessPromise::clear()
 
 void MIDIAccessPromise::trace(Visitor* visitor)
 {
+    visitor->trace(m_error);
     visitor->trace(m_access);
 }