Move printing defines to buildflag system.

chrome/browser/ui/webui/local_discovery/local_discovery_ui_handler.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_LOCAL_DISCOVERY_LOCAL_DISCOVERY_UI_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_LOCAL_DISCOVERY_LOCAL_DISCOVERY_UI_HANDLER_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "chrome/browser/printing/cloud_print/cloud_print_printer_list.h"
 #include "chrome/browser/printing/cloud_print/privet_device_lister.h"
 #include "chrome/browser/printing/cloud_print/privet_http.h"
 #include "components/signin/core/browser/signin_manager.h"
 #include "content/public/browser/web_ui_message_handler.h"
+#include "printing/features/features.h"
 
-#if defined(ENABLE_PRINT_PREVIEW) && !defined(OS_CHROMEOS)
+#if BUILDFLAG(ENABLE_PRINT_PREVIEW) && !defined(OS_CHROMEOS)
 #define CLOUD_PRINT_CONNECTOR_UI_AVAILABLE
 #endif
 
 class CloudPrintProxyService;
 
 namespace cloud_print {
 class PrivetHTTPAsynchronousFactory;
 class PrivetHTTPResolution;
 class PrivetV1HTTPClient;
 }
@@ skipping 169 matching lines @@
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(LocalDiscoveryUIHandler);
 };
 
 #undef CLOUD_PRINT_CONNECTOR_UI_AVAILABLE
 
 }  // namespace local_discovery
 
 #endif  // CHROME_BROWSER_UI_WEBUI_LOCAL_DISCOVERY_LOCAL_DISCOVERY_UI_HANDLER_H_