[Presentation API] Remove closed connections from PresentationConnectionList

third_party/WebKit/Source/modules/presentation/PresentationReceiver.cpp

 // 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.
 
 #include "modules/presentation/PresentationReceiver.h"
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
@@ skipping 81 matching lines @@
   if (!GetFrame())
     return;
 
   auto* window = GetFrame()->DomWindow();
   if (!window || window->closed())
     return;
 
   window->close(GetFrame()->GetDocument());
 }
 
+void PresentationReceiver::RemoveConnection(
+    WebPresentationConnection* connection) {
+  DCHECK(connection_list_);
+  connection_list_->RemoveConnection(connection);
+}
+
 void PresentationReceiver::RegisterConnection(
     PresentationConnection* connection) {
   DCHECK(connection_list_);
   connection_list_->AddConnection(connection);
 }
 
 void PresentationReceiver::RecordOriginTypeAccess(Document* document) const {
   DCHECK(document);
   if (document->IsSecureContext()) {
     UseCounter::Count(document, UseCounter::kPresentationReceiverSecureOrigin);
   } else {
     UseCounter::Count(document,
                       UseCounter::kPresentationReceiverInsecureOrigin);
   }
 }
 
 DEFINE_TRACE(PresentationReceiver) {
   visitor->Trace(connection_list_);
   visitor->Trace(connection_list_property_);
   ContextClient::Trace(visitor);
 }
 
 }  // namespace blink