ActiveScriptWrappable: GC wrappers in detached ExecutionContexts.

third_party/WebKit/Source/modules/filesystem/FileWriter.h

 /*
  * Copyright (C) 2010 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 30 matching lines @@
 #include "public/platform/WebFileWriterClient.h"
 
 namespace blink {
 
 class Blob;
 class ExceptionState;
 class ExecutionContext;
 
 class FileWriter final : public EventTargetWithInlineData,
                          public FileWriterBase,
-                         public ActiveScriptWrappable,
+                         public ActiveScriptWrappable<FileWriter>,
                          public SuspendableObject,
                          public WebFileWriterClient {
   DEFINE_WRAPPERTYPEINFO();
   USING_GARBAGE_COLLECTED_MIXIN(FileWriter);
 
  public:
   static FileWriter* create(ExecutionContext*);
   ~FileWriter() override;
 
   enum ReadyState { kInit = 0, kWriting = 1, kDone = 2 };
@@ skipping 60 matching lines @@
   long long m_truncateLength;
   long long m_numAborts;
   long long m_recursionDepth;
   double m_lastProgressNotificationTimeMS;
   Member<Blob> m_blobBeingWritten;
 };
 
 }  // namespace blink
 
 #endif  // FileWriter_h