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

third_party/WebKit/public/platform/modules/presentation/WebPresentationAvailabilityObserver.h

Index: third_party/WebKit/public/platform/modules/presentation/WebPresentationAvailabilityObserver.h
diff --git a/third_party/WebKit/public/platform/modules/presentation/WebPresentationAvailabilityObserver.h b/third_party/WebKit/public/platform/modules/presentation/WebPresentationAvailabilityObserver.h
index 40a53bde088752d8eab044e1abc8f0505389cdb7..8d3d7aa7f1b82e2a4d013250d177f3d7af73ddc2 100644
--- a/third_party/WebKit/public/platform/modules/presentation/WebPresentationAvailabilityObserver.h
+++ b/third_party/WebKit/public/platform/modules/presentation/WebPresentationAvailabilityObserver.h
@@ -10,16 +10,20 @@
 
 namespace blink {
 
+class WebURL;
+template <typename T>
+class WebVector;
+
 // WebPresentationAvailabilityObserver is an interface that is implemented by
 // objects that wish to be notified when there is a presentation display
-// availability change for a given URL.
+// availability change for given URLs.
 class BLINK_PLATFORM_EXPORT WebPresentationAvailabilityObserver {
  public:
   virtual ~WebPresentationAvailabilityObserver() = default;
 
   virtual void availabilityChanged(bool) = 0;
 
-  virtual const WebURL url() const = 0;
+  virtual const WebVector<WebURL>& urls() const = 0;
 };
 
 }  // namespace blink