cros: Simplify chromeos::input_method::XKeyboard interface.

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 <string>
 #include <vector>
 
 #include "ash/ash_switches.h"
@@ skipping 280 matching lines @@
     // change notifier starts to monitor changes from the power manager and
     // the network manager.
     NetworkChangeNotifierFactoryChromeos::GetInstance()->Initialize();
 
     // Likewise, initialize the upgrade detector for Chrome OS. The upgrade
     // detector starts to monitor changes from the update engine.
     UpgradeDetectorChromeos::GetInstance()->Init();
 
     if (base::SysInfo::IsRunningOnChromeOS()) {
       // Disable Num Lock on X start up for http://crosbug.com/29169.
-      input_method::InputMethodManager::Get()->GetXKeyboard()->
-          SetNumLockEnabled(false);
+      input_method::InputMethodManager::Get()->GetXKeyboard()->DisableNumLock();
     }
 
     // Initialize the device settings service so that we'll take actions per
     // signals sent from the session manager. This needs to happen before
     // g_browser_process initializes BrowserPolicyConnector.
     DeviceSettingsService::Initialize();
     DeviceSettingsService::Get()->SetSessionManager(
         DBusThreadManager::Get()->GetSessionManagerClient(),
         OwnerKeyUtil::Create());
   }
@@ skipping 526 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