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 73 matching lines @@
       var defaultOptions = cap.option.filter(function(option) {
         return option.is_default;
       });
       return defaultOptions.length == 0 ? false :
                                           defaultOptions[0].type == 'LANDSCAPE';
     },
 
     /** @override */
     getCapabilityNotAvailableValueInternal: function() {
       var doc = this.getDocumentInfoInternal();
-      return doc.hasCssMediaStyles ?
+      // TODO(vitalybuka): For landscape PDF dimmensions should be

[Aleksey Shlyapnikov, 2014/09/18 19:03:01]

dimensions

[Vitaly Buka (NO REVIEWS), 2014/09/18 19:08:46]

Done.

+      // width > height. Find why it's not true.
+      return (!doc.isModifiable || doc.hasCssMediaStyles) ?

[Aleksey Shlyapnikov, 2014/09/18 19:03:01]

Let's not add this check.

[Vitaly Buka (NO REVIEWS), 2014/09/18 19:08:46]

Done.

           (doc.pageSize.width > doc.pageSize.height) :
           false;
     },
 
     /** @override */
     updateValueInternal: function(value) {
       var updateMargins = !this.isValueEqual(value);
       print_preview.ticket_items.TicketItem.prototype.updateValueInternal.call(
           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;
+      }

[Aleksey Shlyapnikov, 2014/09/18 19:03:01]

Remove brackets.

[Vitaly Buka (NO REVIEWS), 2014/09/18 19:08:46]

Done.

+      var result = false;
+      cap.option.forEach(function(option) {

[Aleksey Shlyapnikov, 2014/09/18 19:03:01]

return capability.option.some(...

[Vitaly Buka (NO REVIEWS), 2014/09/18 19:08:46]

Done.

+        result = result || option.type == value;
+      });
+      return result;
+    },
+
+    /**
      * @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
   };
 });