Add m-esr52 at 52.6.0

1 files changed, 20 insertions, 0 deletions

diff --git a/testing/web-platform/harness/wptrunner/executors/reftest-wait_servodriver.js b/testing/web-platform/harness/wptrunner/executors/reftest-wait_servodriver.js
new file mode 100644
index 000000000..6040b4336
--- /dev/null
+++ b/testing/web-platform/harness/wptrunner/executors/reftest-wait_servodriver.js
@@ -0,0 +1,20 @@
+/* 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/.
+ */
+
+callback = arguments[arguments.length - 1];
+
+function check_done() {
+    if (!document.body.classList.contains('reftest-wait')) {
+        callback();
+    } else {
+        setTimeout(check_done, 50);
+    }
+}
+
+if (document.readyState === 'complete') {
+    check_done();
+} else {
+    addEventListener("load", check_done);
+}