Set orientation to 'AUTO' if we hide orientation option from user.

chrome/browser/resources/print_preview/data/ticket_items/landscape.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.
 
 cr.define('print_preview.ticket_items', function() {
   'use strict';
 
   /**
    * Landscape ticket item whose value is a {@code boolean} that indicates
    * whether the document should be printed in landscape orientation.
@@ skipping 39 matching lines @@
     __proto__: print_preview.ticket_items.TicketItem.prototype,
 
     /** @override */
     wouldValueBeValid: function(value) {
       return true;
     },
 
     /** @override */
     isCapabilityAvailable: function() {
       var cap = this.getPageOrientationCapability_();
-      if (!cap) {
+      if (!cap)
         return false;
-      }
       var hasAutoOrPortraitOption = false;
       var hasLandscapeOption = false;
       cap.option.forEach(function(option) {
         hasAutoOrPortraitOption = hasAutoOrPortraitOption ||
             option.type == 'AUTO' ||
             option.type == 'PORTRAIT';
         hasLandscapeOption = hasLandscapeOption || option.type == 'LANDSCAPE';
       });
       // TODO(rltoscano): Technically, the print destination can still change
       // the orientation of the print out (at least for cloud printers) if the
@@ skipping 30 matching lines @@
           this, value);
       if (updateMargins) {
         // Reset the user set margins when page orientation changes.
         this.marginsType_.updateValue(
           print_preview.ticket_items.MarginsType.Value.DEFAULT);
         this.customMargins_.updateValue(null);
       }
     },
 
     /**
+     * @return {boolean} Whether capability contains the |value|.
+     * @param {string} value Option to check.
+     */
+    hasOption: function(value) {
+      var cap = this.getPageOrientationCapability_();
+      if (!cap)
+        return false;
+      return cap.option.some(function(option) {
+        return option.type == value;
+      });
+    },
+
+    /**
      * @return {Object} Page orientation capability of the selected destination.
      * @private
      */
     getPageOrientationCapability_: function() {
       var dest = this.getSelectedDestInternal();
       return (dest &&
               dest.capabilities &&
               dest.capabilities.printer &&
               dest.capabilities.printer.page_orientation) ||
              null;
     }
   };
 
   // Export
   return {
     Landscape: Landscape
   };
 });