bug 1054959 - follow up to fix context menut test r=orange CLOSED TREE

browser/base/content/test/general/test_contextmenu.html

@@ -174,7 +174,8 @@ function runTest(testNum) {
                           "---",                        null,
                           "context-savevideo",          true,
                           "context-video-saveimage",    true,
-                          "context-sendvideo",          true
+                          "context-sendvideo",          true,
+                          "context-castvideo",          true
                          ].concat(inspectItems));
         closeContextMenu();
         openContextMenuFor(audio_in_video); // Invoke context menu for next test.