Move printing defines to buildflag system.

chrome/browser/printing/print_view_manager_common.cc

Index: chrome/browser/printing/print_view_manager_common.cc
diff --git a/chrome/browser/printing/print_view_manager_common.cc b/chrome/browser/printing/print_view_manager_common.cc
index 097220415f1ea81bec36122b1a23d4437c74e5eb..b4b3603a2b69e6397e70ff58d5ddbc0c45dab8b9 100644
--- a/chrome/browser/printing/print_view_manager_common.cc
+++ b/chrome/browser/printing/print_view_manager_common.cc
@@ -4,16 +4,18 @@
 
 #include "chrome/browser/printing/print_view_manager_common.h"
 
+#include "printing/features/features.h"
+
 #if defined(ENABLE_EXTENSIONS)
 #include "components/guest_view/browser/guest_view_manager.h"
 #include "extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.h"
 #endif  // defined(ENABLE_EXTENSIONS)
 
-#if defined(ENABLE_PRINT_PREVIEW)
+#if BUILDFLAG(ENABLE_PRINT_PREVIEW)
 #include "chrome/browser/printing/print_view_manager.h"
 #else
 #include "chrome/browser/printing/print_view_manager_basic.h"
-#endif  // defined(ENABLE_PRINT_PREVIEW)
+#endif  // BUILDFLAG(ENABLE_PRINT_PREVIEW)
 
 namespace printing {
 namespace {
@@ -53,31 +55,31 @@ content::WebContents* GetWebContentsToUse(content::WebContents* contents) {
 void StartPrint(content::WebContents* contents,
                 bool print_preview_disabled,
                 bool selection_only) {
-#if defined(ENABLE_PRINT_PREVIEW)
+#if BUILDFLAG(ENABLE_PRINT_PREVIEW)
   using PrintViewManagerImpl = PrintViewManager;
 #else
   using PrintViewManagerImpl = PrintViewManagerBasic;
-#endif  // defined(ENABLE_PRINT_PREVIEW)
+#endif  // BUILDFLAG(ENABLE_PRINT_PREVIEW)
 
   auto* print_view_manager =
       PrintViewManagerImpl::FromWebContents(GetWebContentsToUse(contents));
   if (!print_view_manager)
     return;
-#if defined(ENABLE_PRINT_PREVIEW)
+#if BUILDFLAG(ENABLE_PRINT_PREVIEW)
   if (!print_preview_disabled) {
     print_view_manager->PrintPreviewNow(selection_only);
     return;
   }
 #endif  // ENABLE_PRINT_PREVIEW
 
-#if defined(ENABLE_BASIC_PRINTING)
+#if BUILDFLAG(ENABLE_BASIC_PRINTING)
   print_view_manager->PrintNow();
 #endif  // ENABLE_BASIC_PRINTING
 }
 
-#if defined(ENABLE_BASIC_PRINTING)
+#if BUILDFLAG(ENABLE_BASIC_PRINTING)
 void StartBasicPrint(content::WebContents* contents) {
-#if defined(ENABLE_PRINT_PREVIEW)
+#if BUILDFLAG(ENABLE_PRINT_PREVIEW)
   PrintViewManager* print_view_manager =
       PrintViewManager::FromWebContents(GetWebContentsToUse(contents));
   if (!print_view_manager)