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

crypto/symmetric_key_openssl.cc

 // 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 <openssl/evp.h>
 #include <openssl/rand.h>
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/openssl_util.h"
 #include "base/string_util.h"
 
-namespace base {
+namespace crypto {
 
 SymmetricKey::~SymmetricKey() {
   std::fill(key_.begin(), key_.end(), '\0');  // Zero out the confidential key.
 }
 
 // static
 SymmetricKey* SymmetricKey::GenerateRandomKey(Algorithm algorithm,
                                               size_t key_size_in_bits) {
   DCHECK_EQ(AES, algorithm);
   int key_size_in_bytes = key_size_in_bits / 8;
@@ skipping 38 matching lines @@
   scoped_ptr<SymmetricKey> key(new SymmetricKey);
   key->key_ = raw_key;
   return key.release();
 }
 
 bool SymmetricKey::GetRawKey(std::string* raw_key) {
   *raw_key = key_;
   return true;
 }
 
-}  // namespace base
+}  // namespace crypto