Move printing defines to buildflag system.

chrome/browser/renderer_context_menu/render_view_context_menu.h

Index: chrome/browser/renderer_context_menu/render_view_context_menu.h
diff --git a/chrome/browser/renderer_context_menu/render_view_context_menu.h b/chrome/browser/renderer_context_menu/render_view_context_menu.h
index 7fcb32ff455ca10b77ff0d27c7bcd75c94c2800d..731dde5ca0e1b185ca73610dc26286fcd9dbcb90 100644
--- a/chrome/browser/renderer_context_menu/render_view_context_menu.h
+++ b/chrome/browser/renderer_context_menu/render_view_context_menu.h
@@ -20,6 +20,7 @@
 #include "components/renderer_context_menu/render_view_context_menu_observer.h"
 #include "components/renderer_context_menu/render_view_context_menu_proxy.h"
 #include "content/public/common/context_menu_params.h"
+#include "printing/features/features.h"
 #include "ui/base/models/simple_menu_model.h"
 #include "ui/base/window_open_disposition.h"
 #include "ui/gfx/geometry/vector2d.h"
@@ -235,7 +236,7 @@ class RenderViewContextMenu : public RenderViewContextMenuBase {
   // An observer that handles "Open with <app>" items.
   std::unique_ptr<RenderViewContextMenuObserver> open_with_menu_observer_;
 
-#if defined(ENABLE_PRINT_PREVIEW)
+#if BUILDFLAG(ENABLE_PRINT_PREVIEW)
   // An observer that disables menu items when print preview is active.
   std::unique_ptr<PrintPreviewContextMenuObserver> print_preview_menu_observer_;
 #endif