Don't start the SECCOMP sandbox early for Tegra124

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 <dwmapi.h>
 #include <windows.h>
 #endif
@@ skipping 190 matching lines @@
   base::TimeDelta collect_context_time;
   base::TimeDelta initialize_one_off_time;
 
   // Warm up resources that don't need access to GPUInfo.
   if (WarmUpSandbox(command_line)) {
 #if defined(OS_LINUX)
     bool initialized_sandbox = false;
     bool initialized_gl_context = false;
     bool should_initialize_gl_context = false;
 #if defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL)
-    // On Chrome OS ARM, GPU driver userspace creates threads when initializing
-    // a GL context, so start the sandbox early.
-    gpu_info.sandboxed = StartSandboxLinux(gpu_info, watchdog_thread.get(),
-                                           should_initialize_gl_context);
-    initialized_sandbox = true;
+    // On Chrome OS ARM Mali, GPU driver userspace creates threads when
+    // initializing a GL context, so start the sandbox early.
+    if (!command_line.HasSwitch(
+             switches::kGpuSandboxStartAfterInitialization)) {
+      gpu_info.sandboxed = StartSandboxLinux(gpu_info, watchdog_thread.get(),
+                                             should_initialize_gl_context);
+      initialized_sandbox = true;
+    }
 #endif
 #endif  // defined(OS_LINUX)
 
     base::TimeTicks before_initialize_one_off = base::TimeTicks::Now();
 
     // Determine if we need to initialize GL here or it has already been done.
     bool gl_already_initialized = false;
 #if defined(OS_MACOSX)
     if (!command_line.HasSwitch(switches::kNoSandbox)) {
       // On Mac, if the sandbox is enabled, then GLSurface::InitializeOneOff()
@@ skipping 212 matching lines @@
     return true;
   }
 
   return false;
 }
 #endif  // defined(OS_WIN)
 
 }  // namespace.
 
 }  // namespace content