Move printing defines to buildflag system.

chrome/browser/printing/print_view_manager_common.h

Index: chrome/browser/printing/print_view_manager_common.h
diff --git a/chrome/browser/printing/print_view_manager_common.h b/chrome/browser/printing/print_view_manager_common.h
index 6e1064042731c79c1e0a53e42d5260082066b744..0268635833407c9e20edad75bdb3b5a38c67451c 100644
--- a/chrome/browser/printing/print_view_manager_common.h
+++ b/chrome/browser/printing/print_view_manager_common.h
@@ -5,6 +5,8 @@
 #ifndef CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_COMMON_H_
 #define CHROME_BROWSER_PRINTING_PRINT_VIEW_MANAGER_COMMON_H_
 
+#include "printing/features/features.h"
+
 namespace content {
 class WebContents;
 }
@@ -16,7 +18,7 @@ void StartPrint(content::WebContents* web_contents,
                 bool print_preview_disabled,
                 bool selection_only);
 
-#if defined(ENABLE_BASIC_PRINTING)
+#if BUILDFLAG(ENABLE_BASIC_PRINTING)
 // Start printing using the system print dialog.
 void StartBasicPrint(content::WebContents* contents);
 #endif