[Media Router] Use origin instead of URL for frame.

chrome/browser/ui/webui/media_router/media_router_ui.cc

Index: chrome/browser/ui/webui/media_router/media_router_ui.cc
diff --git a/chrome/browser/ui/webui/media_router/media_router_ui.cc b/chrome/browser/ui/webui/media_router/media_router_ui.cc
index 21fc8393995fbcbcf938e882865df3420030fbf0..6bd7575be0eccf2220d41e3da0847d2a7cf8151f 100644
--- a/chrome/browser/ui/webui/media_router/media_router_ui.cc
+++ b/chrome/browser/ui/webui/media_router/media_router_ui.cc
@@ -421,9 +421,9 @@ bool MediaRouterUI::SetRouteParameters(
   current_route_request_id_ = ++route_request_counter_;
   *origin = for_default_source ? presentation_request_->frame_url().GetOrigin()
                                : GURL(chrome::kChromeUIMediaRouterURL);
+  DVLOG(1) << "DoCreateRoute: origin: " << *origin;
   DCHECK(origin->is_valid());

[imcheng, 2016/10/21 23:58:03]

We should probably remove this DCHECK since we are already validating it during
CreateRoute/ConnectRoutebyRouteId.

 
-  DVLOG(1) << "DoCreateRoute: origin: " << *origin;
 
   // There are 3 cases. In cases (1) and (3) the MediaRouterUI will need to be
   // notified. In case (2) the dialog will be closed.