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

chrome/browser/chromeos/login/existing_user_controller.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/existing_user_controller.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 48 matching lines @@
 #include "net/http/http_transaction_factory.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/views/widget/widget.h"
 
 namespace chromeos {
 
 namespace {
 
-// Major version where we still show GSG as "Release Notes" after the update.
-const long int kReleaseNotesTargetRelease = 19;
-
 // URL for account creation.
 const char kCreateAccountURL[] =
     "https://accounts.google.com/NewAccount?service=mail";
 
 // ChromeVox tutorial URL (used in place of "getting started" url when
 // accessibility is enabled).
 const char kChromeVoxTutorialURLPattern[] =
     "http://www.chromevox.com/tutorial/index.html?lang=%s";
 
 // Delay for transferring the auth cache to the system profile.
 const long int kAuthCacheTransferDelayMs = 2000;
 
 // Delay for restarting the ui if safe-mode login has failed.
 const long int kSafeModeRestartUiDelayMs = 30000;
 
-// Delay for rebooting machine if TPM critical error was encountered.
-const long int kCriticalErrorRebootDelayMs = 3500;
-
 // Makes a call to the policy subsystem to reload the policy when we detect
 // authentication change.
 void RefreshPoliciesOnUIThread() {
   if (g_browser_process->policy_service())
     g_browser_process->policy_service()->RefreshPolicies(base::Closure());
 }
 
 // Copies any authentication details that were entered in the login profile in
 // the mail profile to make sure all subsystems of Chrome can access the network
 // with the provided authentication which are possibly for a proxy server.
@@ skipping 1010 matching lines @@
   // changed.
   UserManager::Get()->SaveUserOAuthStatus(
       username,
       User::OAUTH2_TOKEN_STATUS_INVALID);
 
   login_display_->SetUIEnabled(true);
   login_display_->ShowGaiaPasswordChanged(username);
 }
 
 }  // namespace chromeos