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

third_party/WebKit/public/platform/modules/presentation/WebPresentationReceiver.h

Index: third_party/WebKit/public/platform/modules/presentation/WebPresentationReceiver.h
diff --git a/third_party/WebKit/public/platform/modules/presentation/WebPresentationReceiver.h b/third_party/WebKit/public/platform/modules/presentation/WebPresentationReceiver.h
index 0443b0eb49a4b1ddd7aec74fc12c2ecae183e7ed..9f65a4f367167c61248f966d6e1d21f68fd428eb 100644
--- a/third_party/WebKit/public/platform/modules/presentation/WebPresentationReceiver.h
+++ b/third_party/WebKit/public/platform/modules/presentation/WebPresentationReceiver.h
@@ -11,6 +11,7 @@ namespace blink {
 
 struct WebPresentationSessionInfo;
 class WebPresentationConnection;
+enum class WebPresentationConnectionState;
 
 // The delegate Blink provides to WebPresentationReceiverClient in order to get
 // updates.
@@ -21,6 +22,13 @@ class BLINK_PLATFORM_EXPORT WebPresentationReceiver {
   // Called when receiver page gets an incoming connection.
   virtual WebPresentationConnection* onReceiverConnectionAvailable(
       const WebPresentationSessionInfo&) = 0;
+
+  // Called when receiver page gets destroyed.
+  virtual void didChangeSessionState(WebPresentationConnectionState) = 0;
+
+  // Called when any PresentationConnection object on receiver page invokes
+  // connnection.terminate().
+  virtual void terminateConnection() = 0;
 };
 
 }  // namespace blink