Mocker for OSCrypt

components/os_crypt/os_crypt_mocker.h

Index: components/os_crypt/os_crypt_mocker.h
diff --git a/components/os_crypt/os_crypt_mocker.h b/components/os_crypt/os_crypt_mocker.h
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index 0000000000000000000000000000000000000000..a2992efdc96dced6f123436c1289688fd1d6ec2d
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+++ b/components/os_crypt/os_crypt_mocker.h
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+// Copyright 2016 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.
+
+#ifndef COMPONENTS_OS_CRYPT_OS_CRYPT_MOCKER_H_
+#define COMPONENTS_OS_CRYPT_OS_CRYPT_MOCKER_H_
+
+#include "base/macros.h"
+
+// Handles the mocking of OSCrypt, such that it does not reach system level
+// services.
+class OSCryptMocker {
+ public:
+  // Inject mocking into OSCrypt.
+  static void SetUpWithSingleton();
+
+  // Restore OSCrypt to its real behaviour.
+  static void TearDown();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(OSCryptMocker);
+};
+
+#endif  // COMPONENTS_OS_CRYPT_OS_CRYPT_MOCKER_H_