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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "athena/screen_lock/screen_lock_manager_base.h" | |
6 | |
7 #include "base/logging.h" | |
8 | |
9 namespace athena { | |
10 namespace { | |
11 | |
12 ScreenLockManager* instance = nullptr; | |
13 | |
14 } // namespace | |
15 | |
16 ScreenLockManagerBase::ScreenLockManagerBase() { | |
17 DCHECK(!instance); | |
18 instance = this; | |
19 } | |
20 | |
21 ScreenLockManagerBase::~ScreenLockManagerBase() { | |
22 DCHECK_EQ(instance, this); | |
23 instance = nullptr; | |
24 } | |
25 | |
26 // static | |
27 ScreenLockManager* ScreenLockManager::Get() { | |
28 return instance; | |
29 } | |
30 | |
31 // static | |
32 void ScreenLockManager::Shutdown() { | |
33 if (instance) { | |
34 delete instance; | |
35 DCHECK(!instance); | |
36 } | |
37 } | |
38 | |
39 } // namespace athena | |
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