MD WebUI: Pull 'X selected' toolbar overlay from History into shared element

chrome/browser/resources/md_history/history_toolbar.js

 // 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.
 
 Polymer({
   is: 'history-toolbar',
   properties: {
     // Number of history items currently selected.
     // TODO(calamity): bind this to
     // listContainer.selectedItem.selectedPaths.length.
@@ skipping 78 matching lines @@
   /** @return {CrToolbarSearchFieldElement} */
   get searchField() {
     return /** @type {CrToolbarElement} */ (this.$['main-toolbar'])
         .getSearchField();
   },
 
   showSearchField: function() {
     this.searchField.showAndFocus();
   },
 
+  deleteSelectedItems: function() {
+    this.fire('delete-selected');
+  },
+
+  clearSelectedItems: function() {
+    this.fire('unselect-all');
+  },
+
   /**
    * Changes the toolbar background color depending on whether any history items
    * are currently selected.
    * @private
    */
   changeToolbarView_: function() {
     this.itemsSelected_ = this.count > 0;
   },
 
   /**
@@ skipping 53 matching lines @@
   /**
    * @param {!Event} e
    * @private
    */
   onDocumentKeydown_: function(e) {
     if (e.key == 'Escape')
       this.syncNoticeVisible_ = false;
   },
 
   /** @private */
-  onClearSelectionTap_: function() {
-    this.fire('unselect-all');
-  },
-
-  /** @private */
-  onDeleteTap_: function() {
-    this.fire('delete-selected');
-  },
-
-  /** @private */
   numberOfItemsSelected_: function(count) {
     return count > 0 ? loadTimeData.getStringF('itemsSelected', count) : '';
   },
 });