VAAPI Wrapper: refactor management of drm file

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>
@@ skipping 303 matching lines @@
   }
 
   return true;
 }
 
 void GpuProcessPolicy::InitGpuBrokerProcess(
     sandbox::bpf_dsl::Policy* (*broker_sandboxer_allocator)(void),
     const std::vector<BrokerFilePermission>& permissions_extra) {
   static const char kDriRcPath[] = "/etc/drirc";
   static const char kDriCard0Path[] = "/dev/dri/card0";
-  static const char kDriRenderNode0Path[] = "/dev/dri/renderD128";
   static const char kDevShm[] = "/dev/shm/";
 
   CHECK(broker_process_ == NULL);
 
   // All GPU process policies need these files brokered out.
   std::vector<BrokerFilePermission> permissions;
   permissions.push_back(BrokerFilePermission::ReadWrite(kDriCard0Path));
-  permissions.push_back(BrokerFilePermission::ReadWrite(kDriRenderNode0Path));
   permissions.push_back(BrokerFilePermission::ReadOnly(kDriRcPath));
   if (!IsChromeOS()) {
     permissions.push_back(
         BrokerFilePermission::ReadWriteCreateUnlinkRecursive(kDevShm));
   } else if (IsArchitectureArm() || IsOzone()){
     AddV4L2GpuWhitelist(&permissions);
     if (UseLibV4L2()) {
       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