linux and chromeos: Turn on -Wunused-const-variable.

chrome/browser/ui/webui/chromeos/sim_unlock_ui.cc

 // Copyright (c) 2012 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/chromeos/sim_unlock_ui.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 46 matching lines @@
 // Page JS API function names.
 const char kJsApiSimStatusChanged[] = "mobile.SimUnlock.simStateChanged";
 
 // SIM state variables which are passed to the page.
 const char kState[] = "state";
 const char kError[] = "error";
 const char kTriesLeft[] = "tries";
 
 // Error constants, passed to the page.
 const char kErrorPin[] = "incorrectPin";
-const char kErrorPuk[] = "incorrectPuk";
 const char kErrorOk[] = "ok";
 
 chromeos::NetworkDeviceHandler* GetNetworkDeviceHandler() {
   return chromeos::NetworkHandler::Get()->network_device_handler();
 }
 
 chromeos::NetworkStateHandler* GetNetworkStateHandler() {
   return chromeos::NetworkHandler::Get()->network_state_handler();
 }
 
@@ skipping 752 matching lines @@
   SimUnlockHandler* handler = new SimUnlockHandler();
   web_ui->AddMessageHandler(handler);
   SimUnlockUIHTMLSource* html_source = new SimUnlockUIHTMLSource();
 
   // Set up the chrome://sim-unlock/ source.
   Profile* profile = Profile::FromWebUI(web_ui);
   content::URLDataSource::Add(profile, html_source);
 }
 
 }  // namespace chromeos