Move crypto files out of base, to a top level directory.

crypto/mac_security_services_lock.h

Index: crypto/mac_security_services_lock.h
===================================================================
--- crypto/mac_security_services_lock.h	(revision 79901)
+++ crypto/mac_security_services_lock.h	(working copy)
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef BASE_CRYPTO_MAC_SECURITY_SERVICES_LOCK_H_
-#define BASE_CRYPTO_MAC_SECURITY_SERVICES_LOCK_H_
+#ifndef CRYPTO_MAC_SECURITY_SERVICES_LOCK_H_
+#define CRYPTO_MAC_SECURITY_SERVICES_LOCK_H_
 #pragma once
 
-namespace base {
+namespace crypto {
 
 class Lock;
 
@@ -17,6 +17,6 @@
 // http://developer.apple.com/mac/library/documentation/Security/Reference/certifkeytrustservices/Reference/reference.html
 Lock& GetMacSecurityServicesLock();
 
-}  // namespace base
+}  // namespace crypto
 
-#endif  // BASE_CRYPTO_MAC_SECURITY_SERVICES_LOCK_H_
+#endif  // CRYPTO_MAC_SECURITY_SERVICES_LOCK_H_