Add failed builders to sheriff-o-matic.

Tools/GardeningServer/ui/ct-failing-builders-tests.html

+<!--
+Copyright 2014 The Chromium Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file.
+-->
+
+<link rel="import" href="ct-failing-builders.html">
+
+<script>
+(function () {
+
+var kExampleBuilders = {
+  'Win7 (dbg)': ['compile'],
+  'WebKit Mac10.6 (dbg)': ['content_browsertests', 'unit_tests'],
+  'WebKit XP': ['runhooks', 'webkit_unit_tests', 'webkit_lint'],
+};
+
+module("ct-failing-builders");
+
+asyncTest("basic", 3, function() {
+  var el = document.createElement('ct-failing-builders');
+  el.builders = kExampleBuilders;
+
+  el.async(function() {

[michaelpg, 2014/07/08 23:44:38]

This works. But still waiting to hear from someone smarter than me about what we
actually want to do here.

[ojan, 2014/07/10 02:26:43]

I'm also not sure what Platform.endOfMicroTask actually does. :( Your original
code (except without the setTimeout) looked correct to me. You set .builders and
then call endOfMicroTask. Seems like that ordering should work. esprehn, any
idea what's going on here?

[michaelpg, 2014/07/10 02:53:28]

The problem is endOfMicrotask doesn't actually do enough here.

https://github.com/Polymer/platform-dev/issues/33 has been opened.

async looks like the way to go for now.

+    var builders = el.shadowRoot.querySelectorAll('ct-builder');
+    for (var i = 0; i < builders.length; i++) {
+      var steps = builders[i].shadowRoot.querySelector('.details');
+      ok(steps.innerText == 'compile' ||

[ojan, 2014/07/10 02:26:43]

Nit: use textContent. innerText is super crazy (e.g. does line breaks and what
not based off the rendered state).

[michaelpg, 2014/07/10 02:53:28]

Done, sorry, I knew this already.

+         steps.innerText == 'content_browsertests, unit_tests' ||
+         steps.innerText == 'runhooks, webkit_unit_tests, webkit_lint');
+    }
+    start();
+  });
+});
+
+})()
+</script>