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

crypto/nss_util_internal.h

 // Copyright (c) 2011 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 BASE_NSS_SLOT_UTIL_H_
-#define BASE_NSS_SLOT_UTIL_H_
+#ifndef CRYPTO_NSS_UTIL_INTERNAL_H_
+#define CRYPTO_NSS_UTIL_INTERNAL_H_
 #pragma once
 
 #include <secmodt.h>
 
 // These functions return a type defined in an NSS header, and so cannot be
 // declared in nss_util.h.  Hence, they are declared here.
 
-namespace base {
+namespace crypto {
 
 // Returns a reference to the default NSS key slot for storing
 // public-key data only (e.g. server certs). Caller must release
 // returned reference with PK11_FreeSlot.
 PK11SlotInfo* GetPublicNSSKeySlot();
 
 // Returns a reference to the default slot for storing private-key and
 // mixed private-key/public-key data.  Returns a hardware (TPM) NSS
 // key slot if on ChromeOS and EnableTPMForNSS() has been called
 // successfully. Caller must release returned reference with
 // PK11_FreeSlot.
 PK11SlotInfo* GetPrivateNSSKeySlot();
 
-}  // namespace base
+}  // namespace crypto
 
-#endif  // BASE_NSS_UTIL_H_
+#endif  // CRYPTO_NSS_UTIL_INTERNAL_H_