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

crypto/symmetric_key_mac.cc

Index: crypto/symmetric_key_mac.cc
===================================================================
--- crypto/symmetric_key_mac.cc	(revision 79901)
+++ crypto/symmetric_key_mac.cc	(working copy)
@@ -1,15 +1,15 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
-#include "base/crypto/symmetric_key.h"
+#include "crypto/symmetric_key.h"
 
 #include <CommonCrypto/CommonCryptor.h>
 #include <CoreFoundation/CFString.h>
 #include <Security/cssm.h>
 
-#include "base/crypto/cssm_init.h"
 #include "base/logging.h"
+#include "crypto/cssm_init.h"
 
 namespace {
 
@@ -63,7 +63,7 @@
 
 }  // namespace
 
-namespace base {
+namespace crypto {
 
 SymmetricKey::~SymmetricKey() {}
 
@@ -152,4 +152,4 @@
   return StringToData(key_);
 }
 
-}  // namespace base
+}  // namespace crypto