diff -r 000000000000 -r 6474c204b198 browser/devtools/eyedropper/test/head.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/eyedropper/test/head.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,45 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const TEST_BASE = "chrome://mochitests/content/browser/browser/devtools/eyedropper/test/";
+const TEST_HOST = 'mochi.test:8888';
+
+let { devtools } = Components.utils.import("resource://gre/modules/devtools/Loader.jsm", {});
+const { Eyedropper, EyedropperManager } = devtools.require("devtools/eyedropper/eyedropper");
+
+let testDir = gTestPath.substr(0, gTestPath.lastIndexOf("/"));
+Services.scriptloader.loadSubScript(testDir + "../../../commandline/test/helpers.js", this);
+
+waitForExplicitFinish();
+
+function cleanup()
+{
+  while (gBrowser.tabs.length > 1) {
+    gBrowser.removeCurrentTab();
+  }
+}
+
+registerCleanupFunction(cleanup);
+
+function addTab(uri) {
+  let deferred = promise.defer();
+
+  let tab = gBrowser.addTab();
+
+  gBrowser.selectedTab = tab;
+  gBrowser.selectedBrowser.addEventListener("load", function onLoad() {
+    gBrowser.selectedBrowser.removeEventListener("load", onLoad, true);
+    deferred.resolve(tab);
+  }, true);
+
+  content.location = uri;
+
+  return deferred.promise;
+}
+
+function dropperLoaded(dropper) {
+  if (dropper.loaded) {
+    return promise.resolve();
+  }
+  return dropper.once("load");
+}