Changes to base/ from a combination of FreeBSD and OpenBSD patches.

base/sys_info_freebsd.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 "base/sys_info.h"
 
+#include <sys/sysctl.h>
+
 #include "base/logging.h"
 
 namespace base {
 
 int64 SysInfo::AmountOfPhysicalMemory() {
   int pages, page_size;
   size_t size = sizeof(pages);
   sysctlbyname("vm.stats.vm.v_page_count", &pages, &size, NULL, 0);
   sysctlbyname("vm.stats.vm.v_page_size", &page_size, &size, NULL, 0);
   if (pages == -1 || page_size == -1) {
     NOTREACHED();
     return 0;
   }
   return static_cast<int64>(pages) * page_size;
 }
 
 // static
 size_t SysInfo::MaxSharedMemorySize() {
   size_t limit;
   size_t size = sizeof(limit);
   sysctlbyname("kern.ipc.shmmax", &limit, &size, NULL, 0);
   return limit;
 }
 
 }  // namespace base