Only show the NaCl plugin when a frame has been rendered

static/js/index.js

@@ -340,7 +340,6 @@ function playGameMode() {
     $(".mdl-layout__header").hide();
     $("#main-content").children().not("#listener, #loadingSpinner").hide();
     $("#main-content").addClass("fullscreen");
-    $("#listener").addClass("fullscreen");
     fullscreenNaclModule();
     $("body").css('backgroundColor', 'black');
 

static/js/messages.js

@@ -32,6 +32,8 @@ function handleMessage(msg) {
             $('#loadingMessage').text(msg.data.replace('ProgressMsg: ', ''));
         } else if(msg.data.indexOf('TransientMsg: ') === 0) {
             snackbarLog(msg.data.replace('TransientMsg: ', ''));
+        } else if(msg.data === 'displayVideo') {
+            $("#listener").addClass("fullscreen");
         }
     }
 }