[Sync] Clean up sync.gyp

sync/util/nigori.h

 // Copyright (c) 2012 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 SYNC_UTIL_NIGORI_H_
 #define SYNC_UTIL_NIGORI_H_
 #pragma once
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
-#include "crypto/symmetric_key.h"
+
+namespace crypto {
+class SymmetricKey;
+}  // namespace

[tfarina, 2012/03/17 14:19:17]

nit: just remove "// namespace" or change to "// namespace crypto". In forward
declarations what I've seem and did was to just omit the "// namespace foo"
because it's so near that is too easy to guess from which namespace they belong.

[akalin, 2012/03/21 00:08:51]

Done.

 
 namespace browser_sync {
 
 // A (partial) implementation of Nigori, a protocol to securely store secrets in
 // the cloud. This implementation does not support server authentication or
 // assisted key derivation.
 //
 // To store secrets securely, use the |Permute| method to derive a lookup name
 // for your secret (basically a map key), and |Encrypt| and |Decrypt| to store
 // and retrieve the secret.
@@ skipping 51 matching lines @@
 
  private:
   scoped_ptr<crypto::SymmetricKey> user_key_;
   scoped_ptr<crypto::SymmetricKey> encryption_key_;
   scoped_ptr<crypto::SymmetricKey> mac_key_;
 };
 
 }  // namespace browser_sync
 
 #endif  // SYNC_UTIL_NIGORI_H_