MD Settings: Search engines, use favicon cache.

chrome/browser/resources/settings/search_engines_page/search_engine_entry.js

Index: chrome/browser/resources/settings/search_engines_page/search_engine_entry.js
diff --git a/chrome/browser/resources/settings/search_engines_page/search_engine_entry.js b/chrome/browser/resources/settings/search_engines_page/search_engine_entry.js
index fd02264bc12fec4f38132eb7a95914d22a6909d7..08be498d041f0c19005af70e3a76a270738f535a 100644
--- a/chrome/browser/resources/settings/search_engines_page/search_engine_entry.js
+++ b/chrome/browser/resources/settings/search_engines_page/search_engine_entry.js
@@ -71,4 +71,14 @@ Polymer({
   closePopupMenu_: function() {
     this.$$('iron-dropdown').close();
   },
+
+  /**
+   * @param {?string} url The icon URL if available.
+   * @return {string} A set of icon URLs.
+   * @private
+   */
+  getIconSet_: function(url) {
+    // Force default icon, if no |engine.iconURL| is available.
+    return getFaviconImageSet(url || '');
+  },
 });