Implement PrintBrowser functionality.

chrome/browser/resources/print_preview/print_preview.js

 // Copyright (c) 2012 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.
 
 // TODO(rltoscano): Move data/* into print_preview.data namespace
 
 <include src="component.js">
 <include src="print_preview_focus_manager.js">
 
 cr.define('print_preview', function() {
   'use strict';
 
   /**
    * Container class for Chromium's print preview.
    * @constructor
    * @extends {print_preview.Component}
    */
   function PrintPreview() {
     print_preview.Component.call(this);
 
     /**
+     * If in PrintBrowser mode, don't show the navbar
+     */
+    if (loadTimeData.getBoolean('printBrowserEnabled'))
+      $('navbar-container').style.display = 'none';

[rbpotter, 2016/12/16 20:05:29]

Not sure that this stops all the events from the navbar. If you open print
preview, apply this styling, then hit "enter" you can still print the page,
which seems unexpected.

+
+    /**
      * Whether the print scaling feature is enabled.
      * @type {boolean}
      * @private
      */
     this.scalingEnabled_ = loadTimeData.getBoolean('scalingEnabled');
 
     /**
      * Used to communicate with Chromium's print system.
      * @type {!print_preview.NativeLayer}
      * @private
@@ skipping 1328 matching lines @@
 <include src="search/recent_destination_list.js">
 <include src="search/destination_list_item.js">
 <include src="search/destination_search.js">
 <include src="search/fedex_tos.js">
 <include src="search/provisional_destination_resolver.js">
 
 window.addEventListener('DOMContentLoaded', function() {
   printPreview = new print_preview.PrintPreview();
   printPreview.initialize();
 });