[Presentation API] (4th)(1-UA blink side) Add WebPresentationConnection and WebPresentationConnecti…

third_party/WebKit/Source/modules/presentation/ExistingPresentationConnectionCallbacks.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/ExistingPresentationConnectionCallbacks.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "modules/presentation/PresentationConnection.h"
 #include "modules/presentation/PresentationError.h"
@@ skipping 22 matching lines @@
     m_connection->didChangeState(WebPresentationConnectionState::Connecting);
 
   m_resolver->resolve(m_connection);
 }
 
 void ExistingPresentationConnectionCallbacks::onError(
     const WebPresentationError& error) {
   NOTREACHED();
 }
 
+WebPresentationConnection*
+ExistingPresentationConnectionCallbacks::getConnection() {
+  return m_connection.get();
+}
+
 }  // namespace blink