WebUI: cr-search-field: Remove delegation pattern, use simple event instead.

chrome/browser/resources/md_extensions/toolbar.js

Index: chrome/browser/resources/md_extensions/toolbar.js
diff --git a/chrome/browser/resources/md_extensions/toolbar.js b/chrome/browser/resources/md_extensions/toolbar.js
index 3da624cc6de96a7cd2e23d8d1ddbff77ed3e5b6c..0752f1035dba0c5f813ebaca0c06dfd4d0d200e5 100644
--- a/chrome/browser/resources/md_extensions/toolbar.js
+++ b/chrome/browser/resources/md_extensions/toolbar.js
@@ -5,11 +5,6 @@
 cr.define('extensions', function() {
   var Toolbar = Polymer({
     is: 'extensions-toolbar',
-
-    /** @param {SearchFieldDelegate} delegate */
-    setSearchDelegate: function(delegate) {
-      this.$['search-field'].setDelegate(delegate);
-    },
   });
 
   return {Toolbar: Toolbar};