Show gpu process sandbox status in the about:gpu page.

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 140 matching lines @@
     TRACE_EVENT0("gpu", "Initialize sandbox");
     bool do_init_sandbox = true;
 
 #if defined(OS_CHROMEOS) && defined(NDEBUG)
     // On Chrome OS and when not on a debug build, initialize
     // the GPU process' sandbox only for Intel GPUs.
     do_init_sandbox = gpu_info.gpu.vendor_id == 0x8086;   // Intel GPU.
 #endif
 
     if (do_init_sandbox) {
-      content::InitializeSandbox();
+      gpu_info.sandboxed = content::InitializeSandbox();
     }
   }
 #endif
 
 #if defined(OS_WIN)
   {
     TRACE_EVENT0("gpu", "Lower token");
     // For windows, if the target_services interface is not zero, the process
     // is sandboxed and we must call LowerToken() before rendering untrusted
     // content.
     sandbox::TargetServices* target_services =
         parameters.sandbox_info->target_services;
-    if (target_services)
+    if (target_services) {
       target_services->LowerToken();
+      gpu_info.sandboxed = true;
+    }
   }
 #endif
 
   MessageLoop::Type message_loop_type = MessageLoop::TYPE_IO;
 #if defined(OS_WIN)
   // Unless we're running on desktop GL, we don't need a UI message
   // loop, so avoid its use to work around apparent problems with some
   // third-party software.
   if (command_line.HasSwitch(switches::kUseGL) &&
       command_line.GetSwitchValueASCII(switches::kUseGL) ==
@@ skipping 110 matching lines @@
 }
 
 void CollectGraphicsInfo(content::GPUInfo* gpu_info) {
   if (!gpu_info_collector::CollectGraphicsInfo(gpu_info))
     VLOG(1) << "gpu_info_collector::CollectGraphicsInfo failed";
   content::GetContentClient()->SetGpuInfo(*gpu_info);
 }
 
 }  // namespace.