[Presentation API] Adds DOMString[] constructor to PresentationRequest.

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

Index: third_party/WebKit/Source/modules/presentation/Presentation.cpp
diff --git a/third_party/WebKit/Source/modules/presentation/Presentation.cpp b/third_party/WebKit/Source/modules/presentation/Presentation.cpp
index 8a3e16adae0692710e19bc76d58210d09b634497..15b217a37a1c9b698bc8fdc1af9684ff7dc1edf8 100644
--- a/third_party/WebKit/Source/modules/presentation/Presentation.cpp
+++ b/third_party/WebKit/Source/modules/presentation/Presentation.cpp
@@ -10,6 +10,8 @@
 #include "modules/presentation/PresentationController.h"
 #include "modules/presentation/PresentationReceiver.h"
 #include "modules/presentation/PresentationRequest.h"
+#include "platform/weborigin/KURL.h"
+#include "wtf/Vector.h"
 
 namespace blink {
 
@@ -37,6 +39,9 @@ PresentationRequest* Presentation::defaultRequest() const {
 }
 
 void Presentation::setDefaultRequest(PresentationRequest* request) {
+  if (!request)
+    return;

[mlamouri (slow - plz ping), 2016/12/10 12:06:18]

Wouldn't this prevent `navigator.presentation.defaultRequest = null;` to work?

[zhaobin, 2016/12/12 19:53:45]

Done.

[zhaobin, 2016/12/12 19:53:45]

yes, it will break defaultRequest = null. Reverted it back.

+
   m_defaultRequest = request;
 
   if (!frame())
@@ -45,7 +50,7 @@ void Presentation::setDefaultRequest(PresentationRequest* request) {
   PresentationController* controller = PresentationController::from(*frame());
   if (!controller)
     return;
-  controller->setDefaultRequestUrl(request ? request->url() : KURL());
+  controller->setDefaultRequestUrl(request->urls());
 }
 
 PresentationReceiver* Presentation::receiver() {