Print Preview: Assign to the header summary label only once.

chrome/browser/resources/print_preview/print_header.js

Index: chrome/browser/resources/print_preview/print_header.js
diff --git a/chrome/browser/resources/print_preview/print_header.js b/chrome/browser/resources/print_preview/print_header.js
index 7b9b8ded9506c6fb5f94cc9ff09f49ed55021a46..5a1b4446b385902f6e6e71041a2da6a440be503a 100644
--- a/chrome/browser/resources/print_preview/print_header.js
+++ b/chrome/browser/resources/print_preview/print_header.js
@@ -159,18 +159,11 @@ cr.define('print_preview', function() {
         return;
       }
 
-      var summaryLabel =
-          loadTimeData.getString('printPreviewSheetsLabelSingular');
-      var pagesLabel = loadTimeData.getString('printPreviewPageLabelPlural');
-
       var saveToPdfOrDrive = this.destinationStore_.selectedDestination &&
           (this.destinationStore_.selectedDestination.id ==
               print_preview.Destination.GooglePromotedId.SAVE_AS_PDF ||
            this.destinationStore_.selectedDestination.id ==
               print_preview.Destination.GooglePromotedId.DOCS);
-      if (saveToPdfOrDrive) {
-        summaryLabel = loadTimeData.getString('printPreviewPageLabelSingular');
-      }
 
       var numPages = this.printTicketStore_.pageRange.getPageNumberSet().size;
       var numSheets = numPages;
@@ -182,9 +175,15 @@ cr.define('print_preview', function() {
       numSheets *= copies;
       numPages *= copies;
 
+      var pagesLabel = loadTimeData.getString('printPreviewPageLabelPlural');
+      var summaryLabel;
       if (numSheets > 1) {
         summaryLabel = saveToPdfOrDrive ? pagesLabel :
             loadTimeData.getString('printPreviewSheetsLabelPlural');
+      } else {
+        summaryLabel = saveToPdfOrDrive ?

[dpapad, 2017/04/24 17:23:40]

Nit: Can be compacted even further as follows:

summaryLabel = loadTimeData.getString(
    saveToPdfOrDrive ?
    printPreviewPageLabelSingular : printPreviewSheetsLabelSingular);

[Lei Zhang, 2017/04/24 23:12:17]

Done.

+            loadTimeData.getString('printPreviewPageLabelSingular') :
+            loadTimeData.getString('printPreviewSheetsLabelSingular');
       }
 
       var html;