diff -r 000000000000 -r 6474c204b198 browser/base/content/test/plugins/head.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/base/content/test/plugins/head.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,110 @@
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "Promise",
+  "resource://gre/modules/Promise.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Task",
+  "resource://gre/modules/Task.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
+  "resource://gre/modules/PlacesUtils.jsm");
+
+function whenDelayedStartupFinished(aWindow, aCallback) {
+  Services.obs.addObserver(function observer(aSubject, aTopic) {
+    if (aWindow == aSubject) {
+      Services.obs.removeObserver(observer, aTopic);
+      executeSoon(aCallback);
+    }
+  }, "browser-delayed-startup-finished", false);
+}
+
+function findChromeWindowByURI(aURI) {
+  let windows = Services.wm.getEnumerator(null);
+  while (windows.hasMoreElements()) {
+    let win = windows.getNext();
+    if (win.location.href == aURI)
+      return win;
+  }
+  return null;
+}
+
+function waitForCondition(condition, nextTest, errorMsg) {
+  var tries = 0;
+  var interval = setInterval(function() {
+    if (tries >= 30) {
+      ok(false, errorMsg);
+      moveOn();
+    }
+    var conditionPassed;
+    try {
+      conditionPassed = condition();
+    } catch (e) {
+      ok(false, e + "\n" + e.stack);
+      conditionPassed = false;
+    }
+    if (conditionPassed) {
+      moveOn();
+    }
+    tries++;
+  }, 100);
+  var moveOn = function() { clearInterval(interval); nextTest(); };
+}
+
+function getTestPlugin(aName) {
+  var pluginName = aName || "Test Plug-in";
+  var ph = Cc["@mozilla.org/plugin/host;1"].getService(Ci.nsIPluginHost);
+  var tags = ph.getPluginTags();
+
+  // Find the test plugin
+  for (var i = 0; i < tags.length; i++) {
+    if (tags[i].name == pluginName)
+      return tags[i];
+  }
+  ok(false, "Unable to find plugin");
+  return null;
+}
+
+// call this to set the test plugin(s) initially expected enabled state.
+// it will automatically be reset to it's previous value after the test
+// ends
+function setTestPluginEnabledState(newEnabledState, pluginName) {
+  var plugin = getTestPlugin(pluginName);
+  var oldEnabledState = plugin.enabledState;
+  plugin.enabledState = newEnabledState;
+  SimpleTest.registerCleanupFunction(function() {
+    getTestPlugin(pluginName).enabledState = oldEnabledState;
+  });
+}
+
+// after a test is done using the plugin doorhanger, we should just clear
+// any permissions that may have crept in
+function clearAllPluginPermissions() {
+  let perms = Services.perms.enumerator;
+  while (perms.hasMoreElements()) {
+    let perm = perms.getNext();
+    if (perm.type.startsWith('plugin')) {
+      Services.perms.remove(perm.host, perm.type);
+    }
+  }
+}
+
+function updateBlocklist(aCallback) {
+  var blocklistNotifier = Cc["@mozilla.org/extensions/blocklist;1"]
+                          .getService(Ci.nsITimerCallback);
+  var observer = function() {
+    Services.obs.removeObserver(observer, "blocklist-updated");
+    SimpleTest.executeSoon(aCallback);
+  };
+  Services.obs.addObserver(observer, "blocklist-updated", false);
+  blocklistNotifier.notify(null);
+}
+
+var _originalTestBlocklistURL = null;
+function setAndUpdateBlocklist(aURL, aCallback) {
+  if (!_originalTestBlocklistURL)
+    _originalTestBlocklistURL = Services.prefs.getCharPref("extensions.blocklist.url");
+  Services.prefs.setCharPref("extensions.blocklist.url", aURL);
+  updateBlocklist(aCallback);
+}
+
+function resetBlocklist() {
+  Services.prefs.setCharPref("extensions.blocklist.url", _originalTestBlocklistURL);
+}