M56: Print Preview: Fix handling of printers without capabilities.

chrome/browser/resources/print_preview/data/destination_store.js

Index: chrome/browser/resources/print_preview/data/destination_store.js
diff --git a/chrome/browser/resources/print_preview/data/destination_store.js b/chrome/browser/resources/print_preview/data/destination_store.js
index 785ca4c194cecbbc1e659e18394ea004e272b61b..2258b65a74e60867ae351a37b866fc9db41353b5 100644
--- a/chrome/browser/resources/print_preview/data/destination_store.js
+++ b/chrome/browser/resources/print_preview/data/destination_store.js
@@ -509,6 +509,9 @@ cr.define('print_preview', function() {
    * @private
    */
   DestinationStore.localizeCapabilities_ = function(capabilities) {
+    if (!capabilities.printer)
+      return capabilities;
+
     var mediaSize = capabilities.printer.media_size;
     if (!mediaSize)
       return capabilities;
@@ -545,6 +548,9 @@ cr.define('print_preview', function() {
    * @private
    */
   DestinationStore.sortMediaSizes_ = function(capabilities) {
+    if (!capabilities.printer)
+      return capabilities;
+
     var mediaSize = capabilities.printer.media_size;
     if (!mediaSize)
       return capabilities;