diff -Naur a/patches/common/chromium/viz_osr.patch b/patches/common/chromium/viz_osr.patch
--- a/patches/common/chromium/viz_osr.patch	2019-11-11 13:22:26.792635830 -0800
+++ b/patches/common/chromium/viz_osr.patch	2019-11-11 13:20:34.542643665 -0800
@@ -354,7 +354,7 @@
 index 0000000000000000000000000000000000000000..ff3c0217812a8370a20aa528f117e928fd1b95f4
 --- /dev/null
 +++ b/components/viz/service/display_embedder/software_output_device_proxy.h
-@@ -0,0 +1,88 @@
+@@ -0,0 +1,90 @@
 +// Copyright 2014 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.
@@ -373,6 +373,8 @@
 +#include "components/viz/service/viz_service_export.h"
 +#include "services/viz/privileged/interfaces/compositing/display_private.mojom.h"
 +#include "services/viz/privileged/interfaces/compositing/layered_window_updater.mojom.h"
++#include "base/threading/thread_checker.h"
++#include "base/memory/shared_memory_mapping.h"
 +
 +namespace viz {
 +