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

chrome/browser/chromeos/login/startup_utils.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/login/startup_utils.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/prefs/pref_registry_simple.h"
@@ skipping 12 matching lines @@
 
 // A string pref with initial locale set in VPD or manifest.
 const char kInitialLocale[] = "intl.initial_locale";
 
 // A boolean pref of the OOBE complete flag (first OOBE part before login).
 const char kOobeComplete[] = "OobeComplete";
 
 // A boolean pref of the device registered flag (second part after first login).
 const char kDeviceRegistered[] = "DeviceRegistered";
 
-// Time in seconds that we wait for the device to reboot.
-// If reboot didn't happen, ask user to reboot device manually.
-const int kWaitForRebootTimeSec = 3;
-
 // Saves boolean "Local State" preference and forces its persistence to disk.
 void SaveBoolPreferenceForced(const char* pref_name, bool value) {
   PrefService* prefs = g_browser_process->local_state();
   prefs->SetBoolean(pref_name, value);
   prefs->CommitPendingWrite();
 }
 
 // Saves integer "Local State" preference and forces its persistence to disk.
 void SaveIntegerPreferenceForced(const char* pref_name, int value) {
   PrefService* prefs = g_browser_process->local_state();
@@ skipping 112 matching lines @@
 
 // static
 void StartupUtils::SetInitialLocale(const std::string& locale) {
   if (l10n_util::IsValidLocaleSyntax(locale))
     SaveStringPreferenceForced(kInitialLocale, locale);
   else
     NOTREACHED();
 }
 
 }  // namespace chromeos