Use document from preview for System Dialog printing on Windows.

chrome/browser/ui/webui/print_preview/print_preview_handler.cc

Index: chrome/browser/ui/webui/print_preview/print_preview_handler.cc
diff --git a/chrome/browser/ui/webui/print_preview/print_preview_handler.cc b/chrome/browser/ui/webui/print_preview/print_preview_handler.cc
index 558af3b036a9f4d0833d3c01038d767f8064bab9..4390512ee265233957664dd3187464d7d8a45648 100644
--- a/chrome/browser/ui/webui/print_preview/print_preview_handler.cc
+++ b/chrome/browser/ui/webui/print_preview/print_preview_handler.cc
@@ -828,8 +828,15 @@ void PrintPreviewHandler::HandlePrint(const base::ListValue* args) {
     ReportUserActionHistogram(PRINT_WITH_CLOUD_PRINT);
     SendCloudPrintJob(data.get());
   } else {
-    UMA_HISTOGRAM_COUNTS("PrintPreview.PageCount.PrintToPrinter", page_count);
-    ReportUserActionHistogram(PRINT_TO_PRINTER);
+    bool system_dialog = false;
+    settings->GetBoolean(printing::kSettingShowSystemDialog, &system_dialog);
+    if (system_dialog) {
+      UMA_HISTOGRAM_COUNTS("PrintPreview.PageCount.SystemDialog", page_count);
+      ReportUserActionHistogram(FALLBACK_TO_ADVANCED_SETTINGS_DIALOG);
+    } else {
+      UMA_HISTOGRAM_COUNTS("PrintPreview.PageCount.PrintToPrinter", page_count);
+      ReportUserActionHistogram(PRINT_TO_PRINTER);
+    }
     ReportPrintSettingsStats(*settings);
 
     // This tries to activate the initiator as well, so do not clear the
@@ -1025,8 +1032,8 @@ void PrintPreviewHandler::HandleShowSystemDialog(
   print_view_manager->PrintForSystemDialogNow();
 
   // Cancel the pending preview request if exists.
-  PrintPreviewUI* print_preview_ui = static_cast<PrintPreviewUI*>(
-      web_ui()->GetController());
+  PrintPreviewUI* print_preview_ui =
+      static_cast<PrintPreviewUI*>(web_ui()->GetController());
   print_preview_ui->OnCancelPendingPreviewRequest();
 }