Enable the cups backend when --enable-native-cups is specified.

chrome/browser/chromeos/chrome_browser_main_chromeos.cc

 // Copyright (c) 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.
 
 #include "chrome/browser/chromeos/chrome_browser_main_chromeos.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 123 matching lines @@
 #include "content/public/browser/notification_service.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/main_function_params.h"
 #include "device/bluetooth/bluetooth_adapter_factory.h"
 #include "device/bluetooth/dbus/bluez_dbus_manager.h"
 #include "media/audio/sounds/sounds_manager.h"
 #include "net/base/network_change_notifier.h"
 #include "net/socket/ssl_server_socket.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_context_getter.h"
+#include "printing/backend/print_backend.h"
 #include "ui/base/ime/chromeos/ime_keyboard.h"
 #include "ui/base/ime/chromeos/input_method_manager.h"
 #include "ui/base/touch/touch_device.h"
 #include "ui/events/event_utils.h"
 
 #if defined(ENABLE_RLZ)
 #include "components/rlz/rlz_tracker.h"
 #endif
 
 // Exclude X11 dependents for ozone
@@ skipping 344 matching lines @@
       base::Bind(&ChromeOSVersionCallback));
 
   // Make sure that wallpaper boot transition and other delays in OOBE
   // are disabled for tests and kiosk app launch by default.
   // Individual tests may enable them if they want.
   if (parsed_command_line().HasSwitch(::switches::kTestType) ||
       ShouldAutoLaunchKioskApp(parsed_command_line())) {
     WizardController::SetZeroDelays();
   }
 
+  // Enable/disable native CUPS integration
+  printing::PrintBackend::SetNativeCupsEnabled(
+      parsed_command_line().HasSwitch(::switches::kEnableNativeCups));
+
   power_prefs_.reset(new PowerPrefs(PowerPolicyController::Get()));
 
   // In Aura builds this will initialize ash::Shell.
   ChromeBrowserMainPartsLinux::PreProfileInit();
 
   if (immediate_login) {
     const std::string cryptohome_id =
         parsed_command_line().GetSwitchValueASCII(switches::kLoginUser);
     const AccountId account_id(
         cryptohome::Identification::FromString(cryptohome_id).GetAccountId());
@@ skipping 352 matching lines @@
   // Destroy DBus services immediately after threads are stopped.
   dbus_services_.reset();
 
   ChromeBrowserMainPartsLinux::PostDestroyThreads();
 
   // Destroy DeviceSettingsService after g_browser_process.
   DeviceSettingsService::Shutdown();
 }
 
 }  //  namespace chromeos