Revert "MD History: promote menu button to show clear browsing data in narrow mode"

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.
 function assert(condition, opt_message) {
   if (!condition) {
     var message = 'Assertion failed';
     if (opt_message) message = message + ': ' + opt_message;
     var error = new Error(message);
     var global = function() {
       return this;
@@ skipping 6750 matching lines @@
 // 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: 'cr-toolbar',
   properties: {
     pageName: String,
     searchPrompt: String,
     clearLabel: String,
     menuLabel: String,
-    menuPromo: String,
     spinnerActive: Boolean,
     showMenu: {
       type: Boolean,
       value: false
     },
-    showMenuPromo: {
-      type: Boolean,
-      value: false
-    },
-    closeMenuPromo: String,
     narrow_: {
       type: Boolean,
       reflectToAttribute: true
     },
     showingSearch_: {
       type: Boolean,
       reflectToAttribute: true
     }
   },
-  observers: [ 'possiblyShowMenuPromo_(showMenu, showMenuPromo, showingSearch_)' ],
   getSearchField: function() {
     return this.$.search;
   },
-  onClosePromoTap_: function() {
-    this.showMenuPromo = false;
-  },
-  onMenuTap_: function() {
+  onMenuTap_: function(e) {
     this.fire('cr-menu-tap');
-    this.onClosePromoTap_();
-  },
-  possiblyShowMenuPromo_: function() {
-    Polymer.RenderStatus.afterNextRender(this, function() {
-      if (this.showMenu && this.showMenuPromo && !this.showingSearch_) {
-        this.$$('#menuPromo').animate({
-          opacity: [ 0, .9 ]
-        }, {
-          duration: 500,
-          fill: 'forwards'
-        });
-        this.fire('cr-menu-promo-shown');
-      }
-    }.bind(this));
-  },
-  titleIfNotShowMenuPromo_: function(title, showMenuPromo) {
-    return showMenuPromo ? '' : title;
   }
 });
 
 // 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',
     properties: {
@@ skipping 190 matching lines @@
   };
   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);