[Presentation API] (1-UA) fire PresentationConnection onterminate event if receiver page gets destr…

third_party/WebKit/Source/modules/presentation/PresentationReceiver.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 PresentationReceiver_h
 #define PresentationReceiver_h
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseProperty.h"
 #include "bindings/core/v8/ScriptWrappable.h"
@@ skipping 28 matching lines @@
  public:
   explicit PresentationReceiver(LocalFrame*, WebPresentationClient*);
   ~PresentationReceiver() = default;
 
   // PresentationReceiver.idl implementation
   ScriptPromise connectionList(ScriptState*);
 
   // Implementation of WebPresentationController.
   WebPresentationConnection* onReceiverConnectionAvailable(
       const WebPresentationSessionInfo&) override;
+  void didChangeSessionState(WebPresentationConnectionState) override;
+  void terminateConnection() override;
+
   void registerConnection(PresentationConnection*);
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
   friend class PresentationReceiverTest;
 
   void recordOriginTypeAccess(Document*) const;
 
   Member<ConnectionListProperty> m_connectionListProperty;
   Member<PresentationConnectionList> m_connectionList;
 };
 
 }  // namespace blink
 
 #endif  // PresentationReceiver_h