Fix duplex defaults.

chrome/browser/resources/print_preview/data/local_parsers.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', function() {
   'use strict';
 
   /** Namespace that contains a method to parse local print destinations. */
   function LocalDestinationParser() {};
 
@@ skipping 31 matching lines @@
 
     var hasDuplexCapability = false;
     var defaultIsDuplexEnabled = false;
     // On Windows, some printers don't specify their duplex values in the
     // printer schema. If the printer duplex value is UNKNOWN_DUPLEX_MODE,
     // hide the two sided option in preview tab UI.
     // Ref bug: http://crbug.com/89204
     if (hasDuplexCapability =
         settingsInfo['printerDefaultDuplexValue'] !=
         print_preview.NativeLayer.DuplexMode.UNKNOWN_DUPLEX_MODE) {
-      defaultIsDuplexEnabled =
-          settingsInfo['printerDefaultDuplexValue'] ==
-          print_preview.NativeLayer.DuplexMode.LONG_EDGE;
+      defaultIsDuplexEnabled = settingsInfo['setDuplexAsDefault'] || false;
     }
 
     return new print_preview.ChromiumCapabilities(
         !settingsInfo['disableCopiesOption'] /*hasCopiesCapability*/,
         '1' /*defaultCopiesStr*/,
         true /*hasCollateCapability*/,
         true /*defaultIsCollateEnabled*/,
         hasDuplexCapability,
         defaultIsDuplexEnabled,
         !settingsInfo['disableLandscapeOption'] /*hasOrientationCapability*/,
         false /*defaultIsLandscapeEnabled*/,
         hasColorCapability,
         defaultIsColorEnabled);
   };
 
   // Export
   return {
     LocalCapabilitiesParser: LocalCapabilitiesParser,
     LocalDestinationParser: LocalDestinationParser
   };
 });