Disable Chrome OS seccomp filter GPU sandbox.

content/gpu/gpu_main.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 <stdlib.h>
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
@@ skipping 81 matching lines @@
 #endif
 
     // Set the GPU info even if it failed.
     content::GetContentClient()->SetGpuInfo(gpu_info);
   } else {
     LOG(INFO) << "gfx::GLSurface::InitializeOneOff failed";
     gpu_info.gpu_accessible = false;
     dead_on_arrival = true;
   }
 
-  // Warm up the random subsystem, which needs to done pre-sandbox on all
+  // Warm up the random subsystem, which needs to be done pre-sandbox on all
   // platforms.
   (void) base::RandUint64();
 
-#if defined(OS_LINUX)
+#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
   content::InitializeSandbox();
 #endif
 
   base::win::ScopedCOMInitializer com_initializer;
 
 #if defined(OS_WIN)
   // Preload this DLL because the sandbox prevents it from loading.
   LoadLibrary(L"setupapi.dll");
 
   sandbox::TargetServices* target_services =
@@ skipping 32 matching lines @@
   child_thread->Init(start_time);
 
   gpu_process.set_main_thread(child_thread);
 
   main_message_loop.Run();
 
   child_thread->StopWatchdog();
 
   return 0;
 }