[Presentation API] Add support to content/ for multiple URLs per PresentationRequest.

third_party/WebKit/Source/modules/presentation/PresentationController.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/PresentationController.h"
 
 #include "core/frame/LocalFrame.h"
 #include "modules/presentation/PresentationConnection.h"
 #include "public/platform/modules/presentation/WebPresentationClient.h"
 #include "wtf/PtrUtil.h"
@@ skipping 102 matching lines @@
 void PresentationController::setPresentation(Presentation* presentation)
 {
     m_presentation = presentation;
 }
 
 void PresentationController::setDefaultRequestUrl(const KURL& url)
 {
     if (!m_client)
         return;
 
+    WebVector<WebString> presentationUrls(static_cast<size_t>(1));
     if (url.isValid())
-        m_client->setDefaultPresentationUrl(url.getString());
-    else
-        m_client->setDefaultPresentationUrl(blink::WebString());
+        presentationUrls[0] = url.getString();
+
+    m_client->setDefaultPresentationUrls(presentationUrls);
 }
 
 void PresentationController::registerConnection(PresentationConnection* connection)
 {
     m_connections.add(connection);
 }
 
 void PresentationController::contextDestroyed()
 {
     if (m_client) {
         m_client->setController(nullptr);
         m_client = nullptr;
     }
 }
 
 PresentationConnection* PresentationController::findConnection(WebPresentationConnectionClient* connectionClient)
 {
     for (const auto& connection : m_connections) {
         if (connection->matches(connectionClient))
             return connection.get();
     }
 
     return nullptr;
 }
 
 } // namespace blink