Standardize usage of virtual/override/final specifiers.

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 82 matching lines @@
   read_whitelist->push_back(kLibEglPath);
 
   AddArmMaliGpuWhitelist(read_whitelist, write_whitelist);
 }
 
 class CrosArmGpuBrokerProcessPolicy : public CrosArmGpuProcessPolicy {
  public:
   static sandbox::bpf_dsl::Policy* Create() {
     return new CrosArmGpuBrokerProcessPolicy();
   }
-  virtual ~CrosArmGpuBrokerProcessPolicy() {}
+  ~CrosArmGpuBrokerProcessPolicy() override {}
 
-  virtual ResultExpr EvaluateSyscall(int system_call_number) const override;
+  ResultExpr EvaluateSyscall(int system_call_number) const override;
 
  private:
   CrosArmGpuBrokerProcessPolicy() : CrosArmGpuProcessPolicy(false) {}
   DISALLOW_COPY_AND_ASSIGN(CrosArmGpuBrokerProcessPolicy);
 };
 
 // A GPU broker policy is the same as a GPU policy with open and
 // openat allowed.
 ResultExpr CrosArmGpuBrokerProcessPolicy::EvaluateSyscall(int sysno) const {
   switch (sysno) {
@@ skipping 63 matching lines @@
   // 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