Add support for Tegra V4L2 VDA

content/common/sandbox_linux/bpf_cros_arm_gpu_policy_linux.cc

 // Copyright (c) 2013 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/common/sandbox_linux/bpf_cros_arm_gpu_policy_linux.h"
 
 #include <dlfcn.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/socket.h>
@@ skipping 162 matching lines @@
       base::Bind(&SandboxSeccompBPF::StartSandboxWithExternalPolicy,
                  base::Passed(scoped_ptr<sandbox::SandboxBPFPolicy>(
                      new CrosArmGpuBrokerProcessPolicy))),
       read_whitelist_extra,
       write_whitelist_extra);
 
   const int dlopen_flag = RTLD_NOW | RTLD_GLOBAL | RTLD_NODELETE;
 
   // Preload the Mali library.
   dlopen("/usr/lib/libmali.so", dlopen_flag);
+  // Preload the Tegra V4L2 (video decode acceleration) library.
+  dlopen("/usr/lib/libtegrav4l2.so", dlopen_flag);
+  // Resetting errno since platform-specific libraries will fail on other
+  // platforms.
+  errno = 0;
 
   return true;
 }
 
 }  // namespace content