Print Preview: Fix data/ errors

chrome/browser/resources/print_preview/data/ticket_items/page_range.js

Index: chrome/browser/resources/print_preview/data/ticket_items/page_range.js
diff --git a/chrome/browser/resources/print_preview/data/ticket_items/page_range.js b/chrome/browser/resources/print_preview/data/ticket_items/page_range.js
index db20e71f1f7646ce6258dcb93e5b100a5ebdd9f6..f0120010dd3e44d2107eeac5b39931f1786854bd 100644
--- a/chrome/browser/resources/print_preview/data/ticket_items/page_range.js
+++ b/chrome/browser/resources/print_preview/data/ticket_items/page_range.js
@@ -20,7 +20,7 @@ cr.define('print_preview.ticket_items', function() {
         null /*field*/,
         null /*destinationStore*/,
         documentInfo);
-  };
+  }
 
   /**
    * Impossibly large page number.
@@ -46,7 +46,7 @@ cr.define('print_preview.ticket_items', function() {
      */
     getPageNumberSet: function() {
       var pageNumberList = pageRangeTextToPageList(
-          this.getValue(), this.getDocumentInfoInternal().pageCount);
+          this.getValueAsString_(), this.getDocumentInfoInternal().pageCount);
       return new print_preview.PageNumberSet(pageNumberList);
     },
 
@@ -66,23 +66,31 @@ cr.define('print_preview.ticket_items', function() {
     },
 
     /**
+     * @return {string} The value of the ticket item as a string.
+     * @private
+     */
+    getValueAsString_: function() {
+      return /** @type {string} */(this.getValue());
+    },
+
+    /**
      * @return {!Array<Object<{from: number, to: number}>>} A list of page
      *     ranges.
      */
     getPageRanges: function() {
-      var pageRanges = pageRangeTextToPageRanges(this.getValue());
+      var pageRanges = pageRangeTextToPageRanges(this.getValueAsString_());
       return pageRanges instanceof Array ? pageRanges : [];
     },
 
     /**
-     * @return {!Array<object<{from: number, to: number}>>} A list of page
+     * @return {!Array<Object<{from: number, to: number}>>} A list of page
      *     ranges suitable for use in the native layer.
      * TODO(vitalybuka): this should be removed when native layer switched to
      *     page ranges.
      */
     getDocumentPageRanges: function() {
       var pageRanges = pageRangeTextToPageRanges(
-          this.getValue(), this.getDocumentInfoInternal().pageCount);
+          this.getValueAsString_(), this.getDocumentInfoInternal().pageCount);
       return pageRanges instanceof Array ? pageRanges : [];
     },
 
@@ -98,7 +106,7 @@ cr.define('print_preview.ticket_items', function() {
      */
     checkValidity: function() {
       var pageRanges = pageRangeTextToPageRanges(
-          this.getValue(), this.getDocumentInfoInternal().pageCount);
+          this.getValueAsString_(), this.getDocumentInfoInternal().pageCount);
       return pageRanges instanceof Array ?
           PageRangeStatus.NO_ERROR : pageRanges;
     },