Modify the Chrome Linux zygote to support a nacl_helper executable,

content/common/sandbox_methods_linux.h

Index: content/common/sandbox_methods_linux.h
diff --git a/content/common/sandbox_methods_linux.h b/content/common/sandbox_methods_linux.h
index 02287f6d51be2a54fe75f4b240c1c6cd235dc08d..f048ad82ecbc482a1ad4d37a5c9e590d7513dde6 100644
--- a/content/common/sandbox_methods_linux.h
+++ b/content/common/sandbox_methods_linux.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -7,7 +7,7 @@
 #pragma once
 
 // This is a list of sandbox IPC methods which the renderer may send to the
-// sandbox host. See http://code.google.com/p/chromium/LinuxSandboxIPC
+// sandbox host. See http://code.google.com/p/chromium/wiki/LinuxSandboxIPC
 // This isn't the full list, values < 32 are reserved for methods called from
 // Skia.
 class LinuxSandbox {