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

crypto/nss_util_internal.h

Index: crypto/nss_util_internal.h
===================================================================
--- crypto/nss_util_internal.h	(revision 79901)
+++ crypto/nss_util_internal.h	(working copy)
@@ -2,8 +2,8 @@
 // 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>
@@ -11,7 +11,7 @@
 // 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
@@ -25,6 +25,6 @@
 // PK11_FreeSlot.
 PK11SlotInfo* GetPrivateNSSKeySlot();
 
-}  // namespace base
+}  // namespace crypto
 
-#endif  // BASE_NSS_UTIL_H_
+#endif  // CRYPTO_NSS_UTIL_INTERNAL_H_