Supressing unreferenced variable warning in nacl build.

base/logging.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.
 
 #include "base/logging.h"
 
 #if defined(OS_WIN)
 #include <io.h>
 #include <windows.h>
 typedef HANDLE FileHandle;
@@ skipping 376 matching lines @@
     return true;
 
   if (!log_file_name)
     log_file_name = new PathString();
   *log_file_name = new_log_file;
   if (delete_old == DELETE_OLD_LOG_FILE)
     DeleteFilePath(*log_file_name);
 
   return InitializeLogFileHandle();
 #else
+  (void) g_vlog_info_prev;
   return true;
 #endif  // !defined(OS_NACL)
 }
 
 void SetMinLogLevel(int level) {
   min_log_level = std::min(LOG_ERROR_REPORT, level);
 }
 
 int GetMinLogLevel() {
   return min_log_level;
@@ skipping 444 matching lines @@
 }
 
 // This was defined at the beginning of this file.
 #undef write
 
 }  // namespace logging
 
 std::ostream& operator<<(std::ostream& out, const wchar_t* wstr) {
   return out << WideToUTF8(std::wstring(wstr));
 }