[Presentation API] Remove closed connections from PresentationConnectionList

third_party/WebKit/Source/modules/presentation/PresentationConnectionList.h

 // Copyright 2016 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 PresentationConnectionList_h
 #define PresentationConnectionList_h
 
 #include "core/dom/ExecutionContext.h"
 #include "core/events/EventTarget.h"
 #include "modules/ModulesExport.h"
@@ skipping 19 matching lines @@
   const AtomicString& InterfaceName() const override;
   ExecutionContext* GetExecutionContext() const override {
     return ContextClient::GetExecutionContext();
   }
 
   // PresentationConnectionList.idl implementation.
   const HeapVector<Member<PresentationConnection>>& connections() const;
   DEFINE_ATTRIBUTE_EVENT_LISTENER(connectionavailable);
 
   void AddConnection(PresentationConnection*);
+  // Remove connection from connection list. Returns true if connection is
+  // successfully removed; Returns false if connection does not exist.
+  bool RemoveConnection(WebPresentationConnection*);
   void DispatchConnectionAvailableEvent(PresentationConnection*);
   bool IsEmpty();
 
   DECLARE_VIRTUAL_TRACE();
 
  protected:
   // EventTarget implementation.
   void AddedEventListener(const AtomicString& event_type,
                           RegisteredEventListener&) override;
 
  private:
   friend class PresentationReceiverTest;
 
   HeapVector<Member<PresentationConnection>> connections_;
 };
 
 }  // namespace blink
 
 #endif  // PresentationConnectionList_h