Disable the seccomp filter GPU process sandbox by default on Chrome OS.

content/public/common/content_switches.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.
 
 #include "content/public/common/content_switches.h"
 
 namespace switches {
 
 // By default, file:// URIs cannot read other file:// URIs. This is an
 // override for developers who need the old behavior for testing.
@@ skipping 103 matching lines @@
 // Do not launch the GPU process shortly after browser process launch. Instead
 // launch it when it is first needed.
 const char kDisableGpuProcessPrelaunch[]    = "diasable-gpu-process-prelaunch";
 
 // Disable the GPU process sandbox.
 const char kDisableGpuSandbox[]             = "disable-gpu-sandbox";
 
 // Reduces the GPU process sandbox to be less strict.
 const char kReduceGpuSandbox[]              = "reduce-gpu-sandbox";
 
+// Enable the GPU process sandbox (Chrome OS only for now).
+const char kEnableGPUSandbox[]      = "enable-gpu-sandbox";
+
 // Suppresses hang monitor dialogs in renderer processes.  This may allow slow
 // unload handlers on a page to prevent the tab from closing, but the Task
 // Manager can be used to terminate the offending process in this case.
 const char kDisableHangMonitor[]            = "disable-hang-monitor";
 
 // Disable the use of an ImageTransportSurface. This means the GPU process
 // will present the rendered page rather than the browser process.
 const char kDisableImageTransportSurface[]  = "disable-image-transport-surface";
 
 // Disables HTML5 Forms interactive validation.
@@ skipping 524 matching lines @@
 const char kDefaultTileWidth[]              = "default-tile-width";
 const char kDefaultTileHeight[]             = "default-tile-height";
 
 // Sets the width and height above which a composited layer will get tiled.
 const char kMaxUntiledLayerWidth[]          = "max-untiled-layer-width";
 const char kMaxUntiledLayerHeight[]         = "max-untiled-layer-height";
 
 const char kFixedPositionCreatesStackingContext[]
     = "fixed-position-creates-stacking-context";
 }  // namespace switches