Only enable the Low Box token on Windows 8 and 8.1

content/browser/renderer_host/render_process_host_impl.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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 312 matching lines @@
 #endif  // OS_POSIX
   {}
 
   ~RendererSandboxedProcessLauncherDelegate() override {}
 
 #if defined(OS_WIN)
   virtual void PreSpawnTarget(sandbox::TargetPolicy* policy,
                               bool* success) {
     AddBaseHandleClosePolicy(policy);
 
-    if (base::win::GetVersion() >= base::win::VERSION_WIN8) {
+    if (base::win::GetVersion() == base::win::VERSION_WIN8 ||
+        base::win::GetVersion() != base::win::VERSION_WIN8_1) {

[Will Harris, 2015/03/09 01:18:25]

I think you mean == here?

       // TODO(shrikant): Check if these constants should be different across
       // various versions of Chromium code base or could be same.
       // If there should be different SID per channel then move this code
       // in chrome rather than content and assign SID based on
       // VersionInfo::GetChannel().
       const wchar_t kAppContainerSid[] =
           L"S-1-15-2-3251537155-1984446955-2931258699-841473695-1938553385-"
           L"924012148-129201922";
 
       policy->SetLowBox(kAppContainerSid);
@@ skipping 2069 matching lines @@
   if (worker_ref_count_ == 0)
     Cleanup();
 }
 
 void RenderProcessHostImpl::GetAudioOutputControllers(
     const GetAudioOutputControllersCallback& callback) const {
   audio_renderer_host()->GetOutputControllers(callback);
 }
 
 }  // namespace content