MD Settings: Search Engine: Call iron-list notifyResize

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

Index: chrome/browser/resources/settings/search_engines_page/search_engines_page.js
diff --git a/chrome/browser/resources/settings/search_engines_page/search_engines_page.js b/chrome/browser/resources/settings/search_engines_page/search_engines_page.js
index d8c7b6fc81a3be89ec9f1e4d9a226cb29f46e388..4250af2e811ffbf34db7e3d3ef0405dc9e60de6d 100644
--- a/chrome/browser/resources/settings/search_engines_page/search_engines_page.js
+++ b/chrome/browser/resources/settings/search_engines_page/search_engines_page.js
@@ -15,19 +15,25 @@ Polymer({
     /** @type {!Array<!SearchEngine>} */
     defaultEngines: {
       type: Array,
-      value: function() { return []; }
+      value: function() {
+        return [];
+      },
     },
 
     /** @type {!Array<!SearchEngine>} */
     otherEngines: {
       type: Array,
-      value: function() { return []; }
+      value: function() {
+        return [];
+      },
     },
 
     /** @type {!Array<!SearchEngine>} */
     extensions: {
       type: Array,
-      value: function() { return []; }
+      value: function() {
+        return [];
+      },
     },
 
     /** @private {boolean} */
@@ -40,14 +46,23 @@ Polymer({
     }
   },
 
+  observers: ['extensionsChanged_(extensions, showExtensionsList_)'],
+
   /** @override */
   ready: function() {
-    settings.SearchEnginesBrowserProxyImpl.getInstance().
-        getSearchEnginesList().then(this.enginesChanged_.bind(this));
+    settings.SearchEnginesBrowserProxyImpl.getInstance()
+        .getSearchEnginesList()

[dschuyler, 2016/09/01 23:21:50]

nit: How about moving this line up with the line above
(It looks like they may fit).

+        .then(this.enginesChanged_.bind(this));
     this.addWebUIListener(
         'search-engines-changed', this.enginesChanged_.bind(this));
   },
 
+  /** @private */
+  extensionsChanged_: function() {
+    if (this.showExtensionsList_)
+      this.$.extensions.notifyResize();
+  },
+
   /**
    * @param {!SearchEnginesInfo} searchEnginesInfo
    * @private