ActiveScriptWrappable: GC wrappers in detached ExecutionContexts.

third_party/WebKit/Source/modules/webmidi/MIDIPort.h

 /*
  * Copyright (C) 2013 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 28 matching lines @@
 #include "media/midi/midi_service.mojom-blink.h"
 #include "modules/EventTargetModules.h"
 #include "modules/webmidi/MIDIAccessor.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class MIDIAccess;
 
 class MIDIPort : public EventTargetWithInlineData,
-                 public ActiveScriptWrappable,
+                 public ActiveScriptWrappable<MIDIPort>,
                  public SuspendableObject {
   DEFINE_WRAPPERTYPEINFO();
   USING_GARBAGE_COLLECTED_MIXIN(MIDIPort);
 
  public:
   enum ConnectionState {
     ConnectionStateOpen,
     ConnectionStateClosed,
     ConnectionStatePending
   };
@@ skipping 59 matching lines @@
   TypeCode m_type;
   String m_version;
   TraceWrapperMember<MIDIAccess> m_access;
   midi::mojom::PortState m_state;
   ConnectionState m_connection;
 };
 
 }  // namespace blink
 
 #endif  // MIDIPort_h