AU: Beginnings of delta support

src/platform/update_engine/omaha_hash_calculator.h

 // Copyright (c) 2009 The Chromium OS 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 UPDATE_ENGINE_OMAHA_HASH_CALCULATOR_H__
-#define UPDATE_ENGINE_OMAHA_HASH_CALCULATOR_H__
+#ifndef CHROMEOS_PLATFORM_UPDATE_ENGINE_OMAHA_HASH_CALCULATOR_H__
+#define CHROMEOS_PLATFORM_UPDATE_ENGINE_OMAHA_HASH_CALCULATOR_H__
 
 #include "base/basictypes.h"
 #include <string>
+#include <vector>
 #include <openssl/sha.h>
 
 // Omaha uses base64 encoded SHA-1 as the hash. This class provides a simple
 // wrapper around OpenSSL providing such a formatted hash of data passed in.
 // The methods of this class must be called in a very specific order:
 // First the ctor (of course), then 0 or more calls to Update(), then
 // Finalize(), then 0 or more calls to hash().
 
 namespace chromeos_update_engine {
 
@@ skipping 26 matching lines @@
   // non-empty when Finalize is called.
   std::string hash_;
 
   // The hash state used by OpenSSL
   SHA_CTX ctx_;
   DISALLOW_COPY_AND_ASSIGN(OmahaHashCalculator);
 };
 
 }  // namespace chromeos_update_engine
 
-#endif  // UPDATE_ENGINE_OMAHA_HASH_CALCULATOR_H__
+#endif  // CHROMEOS_PLATFORM_UPDATE_ENGINE_OMAHA_HASH_CALCULATOR_H__