Disambiguate LifecycleObserver::contextDestroyed

third_party/WebKit/Source/core/html/AutoplayUmaHelper.h

 // Copyright 2016 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 AutoplayUmaHelper_h
 #define AutoplayUmaHelper_h
 
 #include "core/CoreExport.h"
 #include "core/dom/ContextLifecycleObserver.h"
 #include "core/events/EventListener.h"
@@ skipping 46 matching lines @@
                                       public ContextLifecycleObserver {
   USING_GARBAGE_COLLECTED_MIXIN(AutoplayUmaHelper);
 
  public:
   static AutoplayUmaHelper* create(HTMLMediaElement*);
 
   ~AutoplayUmaHelper();
 
   bool operator==(const EventListener&) const override;
 
-  void contextDestroyed() override;
+  void contextDestroyed(ExecutionContext*) override;
 
   void onAutoplayInitiated(AutoplaySource);
 
   void recordCrossOriginAutoplayResult(CrossOriginAutoplayResult);
   void recordAutoplayUnmuteStatus(AutoplayUnmuteActionStatus);
 
   void didMoveToNewDocument(Document& oldDocument);
 
   bool isVisible() const { return m_isVisible; }
 
@@ skipping 58 matching lines @@
   // The observer is used to observer an autoplaying muted video changing it's
   // visibility, which is used for offscreen duration UMA.  The UMA is pending
   // for recording as long as this observer is non-null.
   Member<ElementVisibilityObserver>
       m_mutedVideoOffscreenDurationVisibilityObserver;
 };
 
 }  // namespace blink
 
 #endif  // AutoplayUmaHelper_h