diff -r 000000000000 -r 6474c204b198 ipc/chromium/src/base/sys_info_mac.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/chromium/src/base/sys_info_mac.cc	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,46 @@
+// 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 <CoreServices/CoreServices.h>
+
+namespace base {
+
+// static
+void SysInfo::OperatingSystemVersionNumbers(int32_t *major_version,
+                                            int32_t *minor_version,
+                                            int32_t *bugfix_version) {
+  static bool is_initialized = false;
+  static int32_t major_version_cached = 0;
+  static int32_t minor_version_cached = 0;
+  static int32_t bugfix_version_cached = 0;
+
+  if (!is_initialized) {
+    // Gestalt can't be called in the sandbox, so we cache its return value.
+    Gestalt(gestaltSystemVersionMajor,
+        reinterpret_cast<SInt32*>(&major_version_cached));
+    Gestalt(gestaltSystemVersionMinor,
+        reinterpret_cast<SInt32*>(&minor_version_cached));
+    Gestalt(gestaltSystemVersionBugFix,
+        reinterpret_cast<SInt32*>(&bugfix_version_cached));
+    is_initialized = true;
+  }
+
+  *major_version = major_version_cached;
+  *minor_version = minor_version_cached;
+  *bugfix_version = bugfix_version_cached;
+}
+
+// static
+void SysInfo::CacheSysInfo() {
+  // Due to startup time concerns [premature optimization?] we only cache values
+  // from functions we know to be called in the renderer & fail when the sandbox
+  // is enabled.
+  NumberOfProcessors();
+  int32_t dummy;
+  OperatingSystemVersionNumbers(&dummy, &dummy, &dummy);
+}
+
+}  // namespace base