The Tor Browser / file revision

 var gHttpTestRoot = getRootDirectory(gTestPath).replace("chrome://mochitests/content/", "http://127.0.0.1:8888/");

 var gTestBrowser = null;

 Components.utils.import("resource://gre/modules/Services.jsm");

 function test() {

   waitForExplicitFinish();

   registerCleanupFunction(function() {

     Services.prefs.clearUserPref("plugins.click_to_play");

     gTestBrowser.removeEventListener("load", pageLoad, true);

   });

   Services.prefs.setBoolPref("plugins.click_to_play", true);

   setTestPluginEnabledState(Ci.nsIPluginTag.STATE_CLICKTOPLAY);

   gBrowser.selectedTab = gBrowser.addTab();

   gTestBrowser = gBrowser.selectedBrowser;

   gTestBrowser.addEventListener("load", pageLoad, true);

   gTestBrowser.contentWindow.location = gHttpTestRoot + "plugin_both.html";

 }

 function pageLoad(aEvent) {

   // Due to layout being async, "PluginBindAttached" may trigger later.

   // This forces a layout flush, thus triggering it, and schedules the

   // test so it is definitely executed afterwards.

   gTestBrowser.contentDocument.getElementById('test').clientTop;

   executeSoon(actualTest);

 }

 function actualTest() {

   var popupNotification = PopupNotifications.getNotification("click-to-play-plugins", gTestBrowser);

   ok(popupNotification, "should have a click-to-play notification");

   var plugin = gTestBrowser.contentDocument.getElementById("test");

   ok(plugin, "should have known plugin in page");

   var objLoadingContent = plugin.QueryInterface(Ci.nsIObjectLoadingContent);

   is(objLoadingContent.pluginFallbackType, Ci.nsIObjectLoadingContent.PLUGIN_CLICK_TO_PLAY, "plugin fallback type should be PLUGIN_CLICK_TO_PLAY");

   ok(!objLoadingContent.activated, "plugin should not be activated");

   var unknown = gTestBrowser.contentDocument.getElementById("unknown");

   ok(unknown, "should have unknown plugin in page");

   gBrowser.removeCurrentTab();

   window.focus();

   finish();

 }