$OpenBSD: patch-base_sys_info_posix_cc,v 1.2 2013/04/03 08:19:10 robert Exp $
--- base/sys_info_posix.cc.orig.port	Fri Mar 22 02:13:43 2013
+++ base/sys_info_posix.cc	Tue Apr  2 21:05:17 2013
@@ -40,6 +40,17 @@ int SysInfo::NumberOfProcessors() {
 #endif
 
 // static
+int64 SysInfo::AmountOfAvailablePhysicalMemory() {
+  long available_pages = sysconf(_SC_AVPHYS_PAGES);
+  long page_size = sysconf(_SC_PAGE_SIZE);
+  if (available_pages == -1 || page_size == -1) {
+    NOTREACHED();
+    return 0;
+  }
+  return static_cast<int64>(available_pages) * page_size;
+}
+
+// static
 int64 SysInfo::AmountOfFreeDiskSpace(const FilePath& path) {
   base::ThreadRestrictions::AssertIOAllowed();
 
