[Presentation API] add url property to blink PresentationConnection object

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

 // Copyright 2014 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 PresentationConnection_h
 #define PresentationConnection_h
 
 #include "core/events/EventTarget.h"
 #include "core/fileapi/Blob.h"
 #include "core/fileapi/FileError.h"
@@ skipping 38 matching lines @@
       std::unique_ptr<WebPresentationConnectionClient>);
   ~PresentationConnection() override;
 
   // EventTarget implementation.
   const AtomicString& interfaceName() const override;
   ExecutionContext* getExecutionContext() const override;
 
   DECLARE_VIRTUAL_TRACE();
 
   const String& id() const { return m_id; }
+  const String& url() const { return m_url; }
   const WTF::AtomicString& state() const;
 
   void send(const String& message, ExceptionState&);
   void send(DOMArrayBuffer*, ExceptionState&);
   void send(DOMArrayBufferView*, ExceptionState&);
   void send(Blob*, ExceptionState&);
   void close();
   void terminate();
 
   String binaryType() const;
@@ skipping 55 matching lines @@
   // For Blob data handling.
   Member<BlobLoader> m_blobLoader;
   HeapDeque<Member<Message>> m_messages;
 
   BinaryType m_binaryType;
 };
 
 }  // namespace blink
 
 #endif  // PresentationConnection_h