Fix V4L2 device failed to create on veyron board

content/common/sandbox_linux/bpf_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_gpu_policy_linux.h"
 
 #include <dlfcn.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "build/build_config.h"
 #include "content/common/sandbox_linux/sandbox_bpf_base_policy_linux.h"
 #include "content/common/sandbox_linux/sandbox_seccomp_bpf_linux.h"
 #include "content/common/set_process_title.h"
 #include "content/public/common/content_switches.h"
+#include "media/gpu/v4l2_device.h"
 #include "sandbox/linux/bpf_dsl/bpf_dsl.h"
 #include "sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h"
 #include "sandbox/linux/seccomp-bpf-helpers/syscall_sets.h"
 #include "sandbox/linux/syscall_broker/broker_file_permission.h"
 #include "sandbox/linux/syscall_broker/broker_process.h"
 #include "sandbox/linux/system_headers/linux_syscalls.h"
 
 using sandbox::arch_seccomp_data;
 using sandbox::bpf_dsl::Allow;
 using sandbox::bpf_dsl::ResultExpr;
@@ skipping 39 matching lines @@
 }
 
 inline bool IsOzone() {
 #if defined(USE_OZONE)
   return true;
 #else
   return false;
 #endif
 }
 
-inline bool UseLibV4L2() {
-#if defined(USE_LIBV4L2)
-  return true;
-#else
-  return false;
-#endif
-}
-
 bool IsAcceleratedVaapiVideoEncodeEnabled() {
   bool accelerated_encode_enabled = false;
 #if defined(OS_CHROMEOS)
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
   accelerated_encode_enabled =
       !command_line.HasSwitch(switches::kDisableVaapiAcceleratedVideoEncode);
 #endif
   return accelerated_encode_enabled;
 }
@@ skipping 231 matching lines @@
 
   // All GPU process policies need these files brokered out.
   std::vector<BrokerFilePermission> permissions;
   permissions.push_back(BrokerFilePermission::ReadWrite(kDriCard0Path));
   permissions.push_back(BrokerFilePermission::ReadOnly(kDriRcPath));
   if (!IsChromeOS()) {
     permissions.push_back(
         BrokerFilePermission::ReadWriteCreateUnlinkRecursive(kDevShm));
   } else if (IsArchitectureArm() || IsOzone()){
     AddV4L2GpuWhitelist(&permissions);
-    if (UseLibV4L2()) {
+    if (media::V4L2Device::IsUsingLibV4L2()) {
       dlopen("/usr/lib/libv4l2.so", RTLD_NOW|RTLD_GLOBAL|RTLD_NODELETE);
       // This is a device-specific encoder plugin.
       dlopen("/usr/lib/libv4l/plugins/libv4l-encplugin.so",
           RTLD_NOW|RTLD_GLOBAL|RTLD_NODELETE);
     }
   }
 
   // Add eventual extra files from permissions_extra.
   for (const auto& perm : permissions_extra) {
     permissions.push_back(perm);
   }
 
   broker_process_ = new BrokerProcess(GetFSDeniedErrno(), permissions);
   // The initialization callback will perform generic initialization and then
   // call broker_sandboxer_callback.
   CHECK(broker_process_->Init(base::Bind(&UpdateProcessTypeAndEnableSandbox,
                                          broker_sandboxer_allocator)));
 }
 
 }  // namespace content