Bug 827541 follow-up: Make sure that the test case actually instantiates an AudioContext object the first time, as opposed to just access the constructor function through a property access

content/media/webaudio/test/test_bug827541.html

@@ -13,7 +13,7 @@
   var iframe = document.createElementNS("http://www.w3.org/1999/xhtml", "iframe");
   document.body.appendChild(iframe);
   var frameWin = iframe.contentWindow;
-  frameWin.mozAudioContext;
+  frameWin.mozAudioContext();
   document.body.removeChild(iframe);
   frameWin.mozAudioContext();