Mark printing code as basic printing and/or print preview code.

printing/printing_context.cc

Index: printing/printing_context.cc
diff --git a/printing/printing_context.cc b/printing/printing_context.cc
index 16f1103f5cc5f754c6e59ffd5e58eaf49a808fb1..2e080397a691ff91be558a7219dafbe2b04b2cea 100644
--- a/printing/printing_context.cc
+++ b/printing/printing_context.cc
@@ -118,7 +118,9 @@ PrintingContext::Result PrintingContext::UpdatePrintSettings(
   }
 
   bool show_system_dialog = false;
+#if defined(ENABLE_BASIC_PRINTING)
   job_settings.GetBoolean(kSettingShowSystemDialog, &show_system_dialog);
+#endif
 
   int page_count = 0;
   job_settings.GetInteger(kSettingPreviewPageCount, &page_count);