Move printing defines to buildflag system.

chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc

Index: chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
diff --git a/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc b/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
index d7404f2f904d8275416775bb1e69664accc4cf11..0b7cd24cf20ca320505436b74b75a9c979ffd811 100644
--- a/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
+++ b/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
@@ -80,6 +80,7 @@
 #include "content/public/browser/web_ui.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/url_utils.h"
+#include "printing/features/features.h"
 #include "ui/gfx/favicon_size.h"
 #include "ui/web_dialogs/web_dialog_ui.h"
 #include "url/gurl.h"
@@ -92,7 +93,7 @@
 #include "chrome/browser/ui/webui/media/webrtc_logs_ui.h"
 #endif
 
-#if defined(ENABLE_PRINT_PREVIEW)
+#if BUILDFLAG(ENABLE_PRINT_PREVIEW)
 #include "chrome/browser/ui/webui/print_preview/print_preview_ui.h"
 #endif
 
@@ -617,7 +618,7 @@ WebUIFactoryFunction GetWebUIFactoryFunction(WebUI* web_ui,
   if (url.host() == chrome::kChromeUIPluginsHost)
     return &NewWebUI<PluginsUI>;
 #endif
-#if defined(ENABLE_PRINT_PREVIEW)
+#if BUILDFLAG(ENABLE_PRINT_PREVIEW)
   if (url.host() == chrome::kChromeUIPrintHost &&
       !profile->GetPrefs()->GetBoolean(prefs::kPrintPreviewDisabled)) {
     return &NewWebUI<PrintPreviewUI>;