[MD settings] right align cookies filter and remove all buttons

chrome/browser/resources/settings/site_settings/site_data.js

 // Copyright 2016 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.
 
 /**
  * @fileoverview
  * 'site-data' handles showing the local storage summary list for all sites.
  */
 
 Polymer({
@@ skipping 99 matching lines @@
    */
   onDeleteMultipleSites_: function() {
     if (this.filterString_.length == 0) {
       this.removeAllCookies();
     } else {
       var items = this.$.list.items;
       for (var i = 0; i < items.length; ++i) {
         if (this.showItem_(items[i]))
           this.browserProxy.removeCookie(items[i].id);
       }
+      // We just deleted all items found by the filter, let's reset the filter.
+      /** @type {SettingsSubpageSearchElement} */(this.$.filter).setValue('');
     }
   },
 
   /**
    * @param {!{model: !{item: CookieDataSummaryItem}}} event
    * @private
    */
   onSiteTap_: function(event) {
     var dialog = document.createElement('site-data-details-dialog');
     dialog.category = this.category;
     this.shadowRoot.appendChild(dialog);
 
     var node = this.rootCookieNode.fetchNodeById(event.model.item.id, false);
     dialog.open(node);
 
     dialog.addEventListener('close', function(event) {
       dialog.remove();
     });
   },
 });