MD History: Delete button in the toolbar allows deletion of multiple history-items.

chrome/browser/resources/md_history/compiled_resources.gyp

 # 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.
 
 # Closure compiler definition for MD History.
 {
   'targets': [
     {
       'target_name': 'history',
 
       'variables': {
         'depends': [
+          '../../../../third_party/polymer/v1_0/components-chromium/iron-list/iron-list-extracted.js',
+          '../../../../third_party/polymer/v1_0/components-chromium/iron-resizable-behavior/iron-resizable-behavior-extracted.js',
           '../../../../ui/webui/resources/js/compiled_resources.gyp:load_time_data',
           '../../../../ui/webui/resources/js/cr.js',
           '../../../../ui/webui/resources/js/cr/ui/position_util.js',
           '../../../../ui/webui/resources/js/util.js',
+          'history.js',
+          'history_card.js',
           'history_card_manager.js',
-          'history_card.js',
           'history_item.js',
           'history_toolbar.js',
-          'history.js',
         ],
         'externs': [
           '<(EXTERNS_DIR)/chrome_send.js',
           '../history/externs.js',
         ],
       },
 
       'includes': ['../../../../third_party/closure_compiler/compile_js.gypi'],
     },
   ],
 }