Move printing defines to buildflag system.

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

Index: chrome/browser/ui/webui/print_preview/print_preview_ui.cc
diff --git a/chrome/browser/ui/webui/print_preview/print_preview_ui.cc b/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
index f1560a55059801e174ec035f762e1046e51991c2..f04d655ad304fc3c1872455027dad38642db521e 100644
--- a/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
+++ b/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
@@ -37,6 +37,7 @@
 #include "content/public/browser/url_data_source.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui_data_source.h"
+#include "printing/features/features.h"
 #include "printing/page_size_margins.h"
 #include "printing/print_job_constants.h"
 #include "ui/base/l10n/l10n_util.h"
@@ -532,7 +533,7 @@ void PrintPreviewUI::OnPrintPreviewRequest(int request_id) {
   g_print_preview_request_id_map.Get().Set(id_, request_id);
 }
 
-#if defined(ENABLE_BASIC_PRINTING)
+#if BUILDFLAG(ENABLE_BASIC_PRINTING)
 void PrintPreviewUI::OnShowSystemDialog() {
   web_ui()->CallJavascriptFunctionUnsafe("onSystemDialogLinkClicked");
 }