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

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

Index: third_party/WebKit/Source/modules/presentation/PresentationController.cpp
diff --git a/third_party/WebKit/Source/modules/presentation/PresentationController.cpp b/third_party/WebKit/Source/modules/presentation/PresentationController.cpp
index 3ff9b00212db0a302def6fefa3b2417e5e2545d2..1323487c6a67710df3b4970df753ec62999d6ff8 100644
--- a/third_party/WebKit/Source/modules/presentation/PresentationController.cpp
+++ b/third_party/WebKit/Source/modules/presentation/PresentationController.cpp
@@ -120,10 +120,12 @@ void PresentationController::setDefaultRequestUrl(const KURL& url)
     if (!m_client)
         return;
 
+    // TODO(crbug.com/627655): Accept multiple URLs per PresentationRequest.
+    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)