make search box in settings page not get hidden behind enterprise warning

chrome/browser/resources/options2/options_page.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 cr.define('options', function() {
   /////////////////////////////////////////////////////////////////////////////
   // OptionsPage class:
 
   /**
    * Base class for options page.
@@ skipping 386 matching lines @@
       if (topPage.willHidePage)
         topPage.willHidePage();
       topPage.visible = false;
       topPage = topPage.parentPage;
     }
 
     this.updateHistoryState_();
   };
 
   /**
-   * Updates managed banner visibility state based on the topmost page.
-   */
-  OptionsPage.updateManagedBannerVisibility = function() {
-    var topPage = this.getTopmostVisiblePage();
-    if (topPage)
-      topPage.updateManagedBannerVisibility();
-  };
-
-  /**
   * Shows the tab contents for the given navigation tab.
   * @param {!Element} tab The tab that the user clicked.
   */
   OptionsPage.showTab = function(tab) {
     // Search parents until we find a tab, or the nav bar itself. This allows
     // tabs to have child nodes, e.g. labels in separately-styled spans.
     while (tab && !tab.classList.contains('subpages-nav-tabs') &&
            !tab.classList.contains('tab')) {
       tab = tab.parentNode;
     }
@@ skipping 474 matching lines @@
      * @type {OptionsPage}
      */
     associatedControls: null,
 
     /**
      * Initializes page content.
      */
     initializePage: function() {},
 
     /**
-     * Updates managed banner visibility state. This function iterates over
-     * all input fields of a window and if any of these is marked as managed
-     * it triggers the managed banner to be visible. The banner can be enforced
-     * being on through the managed flag of this class but it can not be forced
-     * being off if managed items exist.
-     */
-    updateManagedBannerVisibility: function() {
-      var bannerDiv = $('managed-prefs-banner');
-
-      var controlledByPolicy = false;
-      var controlledByExtension = false;
-      var inputElements = this.pageDiv.querySelectorAll('input[controlled-by]');
-      for (var i = 0, len = inputElements.length; i < len; i++) {
-        if (inputElements[i].controlledBy == 'policy')
-          controlledByPolicy = true;
-        else if (inputElements[i].controlledBy == 'extension')
-          controlledByExtension = true;
-      }
-      if (!controlledByPolicy && !controlledByExtension) {
-        bannerDiv.hidden = true;
-      } else {
-        bannerDiv.hidden = false;
-        var height = window.getComputedStyle(bannerDiv).height;
-        if (controlledByPolicy && !controlledByExtension) {
-          $('managed-prefs-text').textContent =
-              templateData.policyManagedPrefsBannerText;
-        } else if (!controlledByPolicy && controlledByExtension) {
-          $('managed-prefs-text').textContent =
-              templateData.extensionManagedPrefsBannerText;
-        } else if (controlledByPolicy && controlledByExtension) {
-          $('managed-prefs-text').textContent =
-              templateData.policyAndExtensionManagedPrefsBannerText;
-        }
-      }
-    },
-
-    /**
      * Gets page visibility state.
      */
     get visible() {
       return !this.pageDiv.hidden;
     },
 
     /**
      * Sets page visibility.
      */
     set visible(visible) {
       if ((this.visible && visible) || (!this.visible && !visible))
         return;
 
       this.setContainerVisibility_(visible);
       this.pageDiv.hidden = !visible;
 
       OptionsPage.updatePageFreezeStates();
 
-      // The managed prefs banner is global, so after any visibility change
-      // update it based on the topmost page, not necessarily this page
-      // (e.g., if an ancestor is made visible after a child).
-      OptionsPage.updateManagedBannerVisibility();
-
       // A subpage was shown or hidden.
       if (!this.isOverlay && this.nestingLevel > 0)
         OptionsPage.updateDisplayForShowOrHideSubpage_();
       else if (this.isOverlay && !visible)
         OptionsPage.updateScrollPosition_();
 
       cr.dispatchPropertyChange(this, 'visible', visible, !visible);
     },
 
     /**
@@ skipping 123 matching lines @@
     canShowPage: function() {
       return true;
     },
   };
 
   // Export
   return {
     OptionsPage: OptionsPage
   };
 });