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
new file mode 100644
index 0000000000000000000000000000000000000000..3dd5b8888f9c150578984c8dc1438fb4f2991ffa
--- /dev/null
+++ b/components/os_crypt/os_crypt_mocker.h
@@ -0,0 +1,23 @@
+// 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"
+
+// Holds and serves a password from memory.
+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_