import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

testing/web-platform/harness/wptrunner/executors/testharness_webdriver.js

@@ -0,0 +1,29 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var callback = arguments[arguments.length - 1];
+window.timeout_multiplier = %(timeout_multiplier)d;
+
+window.addEventListener("message", function(event) {
+  var tests = event.data[0];
+  var status = event.data[1];
+
+  var subtest_results = tests.map(function(x) {
+      return [x.name, x.status, x.message, x.stack]
+  });
+
+  clearTimeout(timer);
+  callback(["%(url)s",
+            status.status,
+            status.message,
+            status.stack,
+            subtest_results]);
+}, false);
+
+window.win = window.open("%(abs_url)s", "%(window_id)s");
+
+var timer = setTimeout(function() {
+  window.win.timeout();
+  window.win.close();
+}, %(timeout)s);