Add UMA stats for new Print Preview UI elements.

chrome/browser/resources/print_preview/print_preview.js

Index: chrome/browser/resources/print_preview/print_preview.js
diff --git a/chrome/browser/resources/print_preview/print_preview.js b/chrome/browser/resources/print_preview/print_preview.js
index d6de02f0163552b06a08194114b89985bb451158..49e4b1f72bbc33c5c2dce6ea11f3c2ad5b4a654f 100644
--- a/chrome/browser/resources/print_preview/print_preview.js
+++ b/chrome/browser/resources/print_preview/print_preview.js
@@ -555,6 +555,14 @@ cr.define('print_preview', function() {
         this.nativeLayer_.startShowCloudPrintDialog(
             this.printTicketStore_.pageRange.getPageNumberSet().size);
       } else {
+        if (getIsVisible(this.moreSettings_.getElement())) {
+          new print_preview.PrintSettingsUiMetricsContext().record(
+              this.moreSettings_.isExpanded ?
+                  print_preview.Metrics.PrintSettingsUiBucket.
+                      PRINT_WITH_SETTINGS_EXPANDED :
+                  print_preview.Metrics.PrintSettingsUiBucket.
+                      PRINT_WITH_SETTINGS_COLLAPSED);
+        }
         this.nativeLayer_.startPrint(
             this.destinationStore_.selectedDestination,
             this.printTicketStore_,