Add UMA stats for new Print Preview UI elements.

chrome/browser/resources/print_preview/print_preview.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.
 
 // TODO(rltoscano): Move data/* into print_preview.data namespace
 
 <include src="component.js">
 <include src="print_preview_focus_manager.js">
 
 cr.define('print_preview', function() {
@@ skipping 537 matching lines @@
       }
       if (this.isPreviewGenerationInProgress_) {
         return PrintPreview.PrintAttemptResult_.READY_WAITING_FOR_PREVIEW;
       }
       assert(this.printTicketStore_.isTicketValid(),
           'Trying to print with invalid ticket');
       if (this.uiState_ == PrintPreview.UiState_.OPENING_CLOUD_PRINT_DIALOG) {
         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_,
             this.cloudPrintInterface_,
             this.documentInfo_,
             this.uiState_ == PrintPreview.UiState_.OPENING_PDF_PREVIEW,
             this.showSystemDialogBeforeNextPrint_);
         this.showSystemDialogBeforeNextPrint_ = false;
       }
       return PrintPreview.PrintAttemptResult_.PRINTED;
@@ skipping 725 matching lines @@
 <include src="search/cloud_destination_list.js">
 <include src="search/recent_destination_list.js">
 <include src="search/destination_list_item.js">
 <include src="search/destination_search.js">
 <include src="search/fedex_tos.js">
 
 window.addEventListener('DOMContentLoaded', function() {
   printPreview = new print_preview.PrintPreview();
   printPreview.initialize();
 });