ActiveScriptWrappable: GC wrappers in detached ExecutionContexts.

third_party/WebKit/Source/modules/presentation/PresentationAvailability.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PresentationAvailability_h
 #define PresentationAvailability_h
 
 #include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "core/dom/SuspendableObject.h"
 #include "core/events/EventTarget.h"
 #include "core/page/PageVisibilityObserver.h"
 #include "modules/ModulesExport.h"
 #include "platform/weborigin/KURL.h"
 #include "public/platform/WebURL.h"
 #include "public/platform/modules/presentation/WebPresentationAvailabilityObserver.h"
 
 namespace blink {
 
 class ExecutionContext;
 class ScriptPromiseResolver;
 
 // Expose whether there is a presentation display available for |url|. The
 // object will be initialized with a default value passed via ::take() and will
 // then subscribe to receive callbacks if the status for |url| were to
 // change. The object will only listen to changes when required.
 class MODULES_EXPORT PresentationAvailability final
     : public EventTargetWithInlineData,
-      public ActiveScriptWrappable,
+      public ActiveScriptWrappable<PresentationAvailability>,
       public SuspendableObject,
       public PageVisibilityObserver,
       public WebPresentationAvailabilityObserver {
   USING_GARBAGE_COLLECTED_MIXIN(PresentationAvailability);
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   static PresentationAvailability* take(ScriptPromiseResolver*,
                                         const KURL&,
                                         bool);
@@ skipping 46 matching lines @@
   void updateListening();
 
   const KURL m_url;
   bool m_value;
   State m_state;
 };
 
 }  // namespace blink
 
 #endif  // PresentationAvailability_h