MD WebUI: rework how clearing search works

chrome/browser/resources/md_downloads/crisper.js

 // Copyright (c) 2013 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 Assertion support.
  */
 
 /**
  * Verify |condition| is truthy and return |condition| if so.
@@ skipping 10858 matching lines @@
   showingSearchChanged_: function() {
     if (this.showingSearch) {
       this.focus_();
       return;
     }
 
     this.setValue('');
     this.$.searchInput.blur();
   },
 
-  /** @private */
-  toggleShowingSearch_: function() {
-    this.showingSearch = !this.showingSearch;
-  },
-
   /** @return {boolean} */
   isSearchFocused: function() {
     return this.$.searchTerm.focused;
   }
 };
 (function() {
       'use strict';
 
       Polymer.IronA11yAnnouncer = Polymer({
         is: 'iron-a11y-announcer',
@@ skipping 752 matching lines @@
       }
       return cls;
     }
   });
 // Copyright 2015 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.
 
 var SearchField = Polymer({
   is: 'cr-search-field',
-  behaviors: [CrSearchFieldBehavior]
+
+  behaviors: [CrSearchFieldBehavior],
+
+  properties: {
+    value_: String,
+  },
+
+  /** @private */
+  clearSearch_: function() {
+    this.setValue('');
+    this.$.searchInput.focus();
+  },
+
+  /** @private */
+  toggleShowingSearch_: function() {
+    this.showingSearch = !this.showingSearch;
+  },
 });
 // Copyright 2015 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('downloads', function() {
   var Toolbar = Polymer({
     is: 'downloads-toolbar',
 
     attached: function() {
@@ skipping 281 matching lines @@
     Manager.get().updateItem_(index, data);
   };
 
   return {Manager: Manager};
 });
 // Copyright 2015 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.
 
 window.addEventListener('load', downloads.Manager.onLoad);