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

chrome/browser/chromeos/mobile_config.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/chromeos/mobile_config.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/json/json_reader.h"
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/login/startup_utils.h"
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
 
 namespace {
 
 // Config attributes names.
-const char kVersionAttr[] = "version";
 const char kAcceptedConfigVersion[] = "1.0";
 const char kDefaultAttr[] = "default";
 
 // Carrier config attributes.
 const char kCarriersAttr[] = "carriers";
 const char kCarrierIdsAttr[] = "ids";
 const char kCarrierIdAttr[] = "id";
 const char kTopUpURLAttr[] = "top_up_url";
 const char kShowPortalButtonAttr[] = "show_portal_button";
 const char kDealsAttr[] = "deals";
 
 // Carrier deal attributes.
 const char kDealIdAttr[] = "deal_id";
 const char kDealLocalesAttr[] = "locales";
 
 const char kInfoURLAttr[] = "info_url";
 const char kNotificationCountAttr[] = "notification_count";
 const char kDealExpireDateAttr[] = "expire_date";
 const char kLocalizedContentAttr[] = "localized_content";
-const char kNotificationTextAttr[] = "notification_text";
 
 // Initial locale carrier config attributes.
 const char kInitialLocalesAttr[] = "initial_locales";
 const char kSetupURLAttr[] = "setup_url";
 
 // Local config properties.
 const char kExcludeDealsAttr[] = "exclude_deals";
 
 // Location of the global carrier config.
 const char kGlobalCarrierConfigPath[] =
@@ skipping 313 matching lines @@
             << local_config_file.value();
   }
   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
                           base::Bind(&MobileConfig::ProcessConfig,
                                      base::Unretained(this),  // singleton.
                                      global_config,
                                      local_config));
 }
 
 }  // namespace chromeos