Upload upstream chromium 67.0.3396
[platform/framework/web/chromium-efl.git] / crypto / mac_security_services_lock.cc
1 // Copyright (c) 2011 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 "crypto/mac_security_services_lock.h"
6
7 #include "base/macros.h"
8 #include "base/memory/singleton.h"
9 #include "base/synchronization/lock.h"
10
11 namespace {
12
13 class SecurityServicesSingleton {
14  public:
15   static SecurityServicesSingleton* GetInstance() {
16     return base::Singleton<
17         SecurityServicesSingleton,
18         base::LeakySingletonTraits<SecurityServicesSingleton>>::get();
19   }
20
21   base::Lock& lock() { return lock_; }
22
23  private:
24   friend struct base::DefaultSingletonTraits<SecurityServicesSingleton>;
25
26   SecurityServicesSingleton() {}
27   ~SecurityServicesSingleton() {}
28
29   base::Lock lock_;
30
31   DISALLOW_COPY_AND_ASSIGN(SecurityServicesSingleton);
32 };
33
34 }  // namespace
35
36 namespace crypto {
37
38 base::Lock& GetMacSecurityServicesLock() {
39   return SecurityServicesSingleton::GetInstance()->lock();
40 }
41
42 }  // namespace crypto