MD Settings: show when the default search engine is controlled by policy

chrome/browser/resources/settings/search_page/search_page.js

Index: chrome/browser/resources/settings/search_page/search_page.js
diff --git a/chrome/browser/resources/settings/search_page/search_page.js b/chrome/browser/resources/settings/search_page/search_page.js
index 41db7cbf67cb6b988242a4a42f08bd695c3e27ec..78e8febc264a5b873e1dd325cc76c0a4edba3599 100644
--- a/chrome/browser/resources/settings/search_page/search_page.js
+++ b/chrome/browser/resources/settings/search_page/search_page.js
@@ -172,5 +172,23 @@ Polymer({
    */
   doNothing_: function(event) {
     event.stopPropagation();
-  }
+  },
+
+  /**
+   * @param {!chrome.settingsPrivate.PrefObject} pref
+   * @return {boolean}
+   * @private
+   */
+  isDefaultSearchControlledByPolicy_: function(pref) {
+    return pref.controlledBy == chrome.settingsPrivate.ControlledBy.USER_POLICY;
+  },
+
+  /**
+   * @param {!chrome.settingsPrivate.PrefObject} pref
+   * @return {boolean}
+   * @private
+   */
+  isDefaultSearchEngineEnforced_: function(pref) {
+    return pref.enforcement == chrome.settingsPrivate.Enforcement.ENFORCED;
+  },
 });