WebUI: Replace vulcanize with polymer-bundler

chrome/test/data/webui/polymer_browser_test_base.js

Index: chrome/test/data/webui/polymer_browser_test_base.js
diff --git a/chrome/test/data/webui/polymer_browser_test_base.js b/chrome/test/data/webui/polymer_browser_test_base.js
index bbbac975dabcbe3e2b349b5dc60c6efb14f67bf1..d8ef6ad84696d13a20a86e623aa0ec9dc74b03dd 100644
--- a/chrome/test/data/webui/polymer_browser_test_base.js
+++ b/chrome/test/data/webui/polymer_browser_test_base.js
@@ -158,7 +158,8 @@ PolymerTest.loadScript = function(src) {
  */
 PolymerTest.clearBody = function() {
   // Save the div where vulcanize inlines content before clearing the page.
-  var vulcanizeDiv = document.querySelector('body > div[hidden][by-vulcanize]');
+  var vulcanizeDiv = document.querySelector(
+      'body > div[hidden][by-polymer-bundler]');
   document.body.innerHTML = '';
   if (vulcanizeDiv)
     document.body.appendChild(vulcanizeDiv);