Disambiguate LifecycleObserver::contextDestroyed

third_party/WebKit/Source/modules/presentation/PresentationController.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 PresentationController_h
 #define PresentationController_h
 
 #include "core/dom/ContextLifecycleObserver.h"
 #include "core/frame/LocalFrame.h"
 #include "modules/ModulesExport.h"
@@ skipping 63 matching lines @@
   // url equals to one of |presentationUrls|, and state is not terminated.
   // Return null if such a connection does not exist.
   PresentationConnection* findExistingConnection(
       const blink::WebVector<blink::WebURL>& presentationUrls,
       const blink::WebString& presentationId);
 
  private:
   PresentationController(LocalFrame&, WebPresentationClient*);
 
   // Implementation of ContextLifecycleObserver.
-  void contextDestroyed() override;
+  void contextDestroyed(ExecutionContext*) override;
 
   // Return the connection associated with the given |connectionClient| or
   // null if it doesn't exist.
   PresentationConnection* findConnection(const WebPresentationSessionInfo&);
 
   // The WebPresentationClient which allows communicating with the embedder.
   // It is not owned by the PresentationController but the controller will
   // set it to null when the LocalFrame will be detached at which point the
   // client can't be used.
   WebPresentationClient* m_client;
 
   // Default PresentationRequest used by the embedder.
   // Member<PresentationRequest> m_defaultRequest;
   WeakMember<Presentation> m_presentation;
 
   // The presentation connections associated with that frame.
   // TODO(mlamouri): the PresentationController will keep any created
   // connections alive until the frame is detached. These should be weak ptr
   // so that the connection can be GC'd.
   HeapHashSet<Member<PresentationConnection>> m_connections;
 };
 
 }  // namespace blink
 
 #endif  // PresentationController_h