Non-Local Join for Media Router and Presentation API

chrome/browser/resources/media_router/elements/media_router_container/media_router_container.js

Index: chrome/browser/resources/media_router/elements/media_router_container/media_router_container.js
diff --git a/chrome/browser/resources/media_router/elements/media_router_container/media_router_container.js b/chrome/browser/resources/media_router/elements/media_router_container/media_router_container.js
index a94a0c4ec513393d4779e6453c97743a43ca3ed9..9429831bfaef3c07ccde898ed0a8716a1c254932 100644
--- a/chrome/browser/resources/media_router/elements/media_router_container/media_router_container.js
+++ b/chrome/browser/resources/media_router/elements/media_router_container/media_router_container.js
@@ -238,6 +238,19 @@ Polymer({
     }
   },
 
+  setRouteList: function(routeList, joinableRouteIdList) {

[imcheng, 2015/11/26 00:49:46]

I feel like we shouldn't have to fill in the canJoin bit here. Instead, it can
be done in MediaRouterWebUIMessageHandler. Then you don't need to pass
|joinableRouteIdList| into WebUI.

[matt.boetger, 2015/12/01 01:26:56]

Done.

+    this.routeList = routeList;
+    if (joinableRouteIdList) {
+      // We expect that each route in |routeList| maps to a unique sink.
+      joinableRouteIdList.forEach(function(routeId) {
+        var route = this.routeMap_[routeId];
+        if (route) {
+          route.canJoin = true;
+        }
+      }, this);
+    }
+  },
+
   /**
    * @param {media_router.MediaRouterView} view The current view.
    * @return {boolean} Whether or not to hide the cast mode list.