Enable Native CUPS printing on Chrome OS.

chrome/browser/ui/webui/settings/md_settings_localized_strings_provider.cc

 // Copyright 2015 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.
 
 #include "chrome/browser/ui/webui/settings/md_settings_localized_strings_provider.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/i18n/number_formatting.h"
@@ skipping 1448 matching lines @@
   };
   AddLocalizedStringsBulk(html_source, localized_strings,
                           arraysize(localized_strings));
 
   html_source->AddString("devicesUrl", chrome::kChromeUIDevicesURL);
   html_source->AddString("printingCloudPrintLearnMoreUrl",
                          chrome::kCloudPrintLearnMoreURL);
 
 #if defined(OS_CHROMEOS)
   html_source->AddBoolean("showCupsPrintingFeatures",
-                          base::CommandLine::ForCurrentProcess()->HasSwitch(
-                              ::switches::kEnableNativeCups));
+                          !base::CommandLine::ForCurrentProcess()->HasSwitch(
+                              ::switches::kDisableNativeCups));
 #endif
 }
 
 void AddPrivacyStrings(content::WebUIDataSource* html_source,
                        Profile* profile) {
   LocalizedString localized_strings[] = {
     {"privacyPageTitle", IDS_SETTINGS_PRIVACY},
     {"linkDoctorPref", IDS_SETTINGS_LINKDOCTOR_PREF},
     {"searchSuggestPref", IDS_SETTINGS_SUGGEST_PREF},
     {"networkPredictionEnabled",
@@ skipping 552 matching lines @@
 
 #if defined(OS_CHROMEOS)
   chromeos::network_element::AddLocalizedStrings(html_source);
 #endif
   policy_indicator::AddLocalizedStrings(html_source);
 
   html_source->SetJsonPath(kLocalizedStringsFile);
 }
 
 }  // namespace settings