MD History: Replace last usage of cr-shared-menu with cr-action-menu.

chrome/browser/resources/md_history/synced_device_card.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.
 
 Polymer({
   is: 'history-synced-device-card',
 
   properties: {
     // Name of the synced device.
     device: String,
@@ skipping 131 matching lines @@
   getCollapseTitle_: function(opened) {
     return opened ? loadTimeData.getString('collapseSessionButton') :
                     loadTimeData.getString('expandSessionButton');
   },
 
   /**
    * @param {CustomEvent} e
    * @private
    */
   onMenuButtonTap_: function(e) {
-    this.fire('toggle-menu', {
+    this.fire('open-menu', {
       target: Polymer.dom(e).localTarget,
       tag: this.sessionTag
     });
     e.stopPropagation();  // Prevent iron-collapse.
   },
 
   onLinkRightClick_: function() {
     md_history.BrowserService.getInstance().recordHistogram(
         SYNCED_TABS_HISTOGRAM_NAME, SyncedTabsHistogram.LINK_RIGHT_CLICKED,
         SyncedTabsHistogram.LIMIT);
   },
 });