AU: Class to perform delta updates.

src/platform/update_engine/extent_writer_unittest.cc

 // 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.
 
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <algorithm>
 #include <string>
 #include <vector>
 #include <gtest/gtest.h>
 #include "update_engine/extent_writer.h"
+#include "update_engine/graph_types.h"
 #include "update_engine/test_utils.h"
 #include "update_engine/utils.h"
 
 using std::min;
 using std::string;
 using std::vector;
 
 namespace chromeos_update_engine {
 
 COMPILE_ASSERT(sizeof(off_t) == 8, off_t_not_64_bit);
@@ skipping 223 matching lines @@
   vector<char> big(block_count * kBlockSize);
   for (vector<char>::size_type i = 0; i < big.size(); i++) {
     big[i] = data[i % data.size()];
   }
   memcpy(&expected_data[kBlockSize], &big[0], kBlockSize);
   memcpy(&expected_data[0], &big[3 * kBlockSize], kBlockSize);
   ExpectVectorsEq(expected_data, resultant_data);
 }
 
 }  // namespace chromeos_update_engine