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

content/renderer/presentation/presentation_dispatcher.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 CONTENT_RENDERER_PRESENTATION_PRESENTATION_DISPATCHER_H_
 #define CONTENT_RENDERER_PRESENTATION_PRESENTATION_DISPATCHER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 115 matching lines @@
   void sendBlobData(
       const blink::WebURL& presentationUrl,
       const blink::WebString& presentationId,
       const uint8_t* data,
       size_t length,
       const blink::WebPresentationConnectionProxy* connection_proxy) override;
   void closeSession(
       const blink::WebURL& presentationUrl,
       const blink::WebString& presentationId,
       const blink::WebPresentationConnectionProxy* connection_proxy) override;
-  void terminateSession(const blink::WebURL& presentationUrl,
-                        const blink::WebString& presentationId) override;
+  void terminateConnection(const blink::WebURL& presentationUrl,
+                           const blink::WebString& presentationId) override;
   void getAvailability(
       const blink::WebVector<blink::WebURL>& availabilityUrls,
       std::unique_ptr<blink::WebPresentationAvailabilityCallbacks> callbacks)
       override;
   void startListening(blink::WebPresentationAvailabilityObserver*) override;
   void stopListening(blink::WebPresentationAvailabilityObserver*) override;
   void setDefaultPresentationUrls(
       const blink::WebVector<blink::WebURL>& presentationUrls) override;
 
   // RenderFrameObserver implementation.
   void DidCommitProvisionalLoad(
       bool is_new_navigation,
       bool is_same_page_navigation) override;
   void OnDestruct() override;
+  void WidgetWillClose() override;
 
   // blink::mojom::PresentationServiceClient
   void OnScreenAvailabilityNotSupported(const GURL& url) override;
   void OnScreenAvailabilityUpdated(const GURL& url, bool available) override;
   void OnConnectionStateChanged(const PresentationSessionInfo& session_info,
                                 PresentationConnectionState state) override;
   void OnConnectionClosed(const PresentationSessionInfo& session_info,
                           PresentationConnectionCloseReason reason,
                           const std::string& message) override;
   void OnConnectionMessagesReceived(
@@ skipping 117 matching lines @@
   // Returns UNKNOWN if all urls in |urls| have screen availability
   // UNKNOWN.
   ScreenAvailability GetScreenAvailability(const std::vector<GURL>& urls) const;
 
   DISALLOW_COPY_AND_ASSIGN(PresentationDispatcher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PRESENTATION_PRESENTATION_DISPATCHER_H_