clang/win: Let remaining chromium_code targets build with -Wextra.

rlz/win/lib/machine_deal.cc

 // 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.
 //
 // Library functions related to the OEM Deal Confirmation Code.
 
 #include "rlz/win/lib/machine_deal.h"
 
 #include <windows.h>
 #include <vector>
@@ skipping 39 matching lines @@
       return true;
   }
 
   return false;
 }
 
 // This function will remove bad rlz chars and also limit the max rlz to some
 // reasonable size. It also assumes that normalized_dcc is at least
 // kMaxDccLength+1 long.
 void NormalizeDcc(const char* raw_dcc, char* normalized_dcc) {
-  int index = 0;
+  size_t index = 0;
   for (; raw_dcc[index] != 0 && index < rlz_lib::kMaxDccLength; ++index) {
     char current = raw_dcc[index];
     if (IsGoodDccChar(current)) {
       normalized_dcc[index] = current;
     } else {
       normalized_dcc[index] = '.';
     }
   }
 
   normalized_dcc[index] = 0;
@@ skipping 221 matching lines @@
   DWORD dcc_size = arraysize(dcc);
   if (dcc_key.ReadValue(kDccValueName, dcc, &dcc_size, NULL) == ERROR_SUCCESS) {
     ASSERT_STRING("MachineDealCode::Clear: Could not delete the DCC value.");
     return false;
   }
 
   return true;
 }
 
 }  // namespace rlz_lib