update engine: 32- and 64-bit compile

src/platform/update_engine/utils.cc

 // Copyright (c) 2009 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 "update_engine/utils.h"
 #include <sys/mount.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <dirent.h>
 #include <errno.h>
@@ skipping 62 matching lines @@
   }
   (*out) = string(&data[0], data.size());
   return true;
 }
 
 void HexDumpArray(const unsigned char* const arr, const size_t length) {
   const unsigned char* const char_arr =
       reinterpret_cast<const unsigned char* const>(arr);
   LOG(INFO) << "Logging array of length: " << length;
   const unsigned int bytes_per_line = 16;
-  for (size_t i = 0; i < length; i += bytes_per_line) {
+  for (uint32 i = 0; i < length; i += bytes_per_line) {

[Daniel Erat, 2010/04/15 00:55:47]

uint32_t

     const unsigned int bytes_remaining = length - i;
     const unsigned int bytes_per_this_line = min(bytes_per_line,
                                                  bytes_remaining);
     char header[100];
     int r = snprintf(header, sizeof(header), "0x%08x : ", i);
     TEST_AND_RETURN(r == 13);
     string line = header;
     for (unsigned int j = 0; j < bytes_per_this_line; j++) {
       char buf[20];
       unsigned char c = char_arr[i + j];
@@ skipping 194 matching lines @@
   TEST_AND_RETURN_FALSE_ERRNO(umount(mountpoint.c_str()) == 0);
   return true;
 }
 
 const char* const kStatefulPartition = "/mnt/stateful_partition";
 
 }  // namespace utils
 
 }  // namespace chromeos_update_engine