Update from chromium https://crrev.com/301315

sandbox/linux/bpf_dsl/policy_compiler.h

 // 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.
 
 #ifndef SANDBOX_LINUX_BPF_DSL_POLICY_COMPILER_H_
 #define SANDBOX_LINUX_BPF_DSL_POLICY_COMPILER_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <set>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "sandbox/linux/seccomp-bpf/codegen.h"
 #include "sandbox/linux/seccomp-bpf/errorcode.h"
 #include "sandbox/sandbox_export.h"
 
 namespace sandbox {
 struct Instruction;
 
 namespace bpf_dsl {
-class SandboxBPFDSLPolicy;
+class Policy;
 
 // PolicyCompiler implements the bpf_dsl compiler, allowing users to
 // transform bpf_dsl policies into BPF programs to be executed by the
 // Linux kernel.
 class SANDBOX_EXPORT PolicyCompiler {
  public:
-  PolicyCompiler(const SandboxBPFDSLPolicy* policy, TrapRegistry* registry);
+  PolicyCompiler(const Policy* policy, TrapRegistry* registry);
   ~PolicyCompiler();
 
   // Compile registers any trap handlers needed by the policy and
   // compiles the policy to a BPF program, which it returns.
   scoped_ptr<CodeGen::Program> Compile();
 
   // Error returns an ErrorCode to indicate the system call should fail with
   // the specified error number.
   ErrorCode Error(int err);
 
@@ skipping 109 matching lines @@
   // Returns a BPF program that evaluates half of a conditional expression;
   // it should only ever be called from CondExpression().
   Instruction* CondExpressionHalf(const ErrorCode& cond,
                                   ArgHalf half,
                                   Instruction* passed,
                                   Instruction* failed);
 
   // MakeTrap is the common implementation for Trap and UnsafeTrap.
   ErrorCode MakeTrap(TrapRegistry::TrapFnc fnc, const void* aux, bool safe);
 
-  const SandboxBPFDSLPolicy* policy_;
+  const Policy* policy_;
   TrapRegistry* registry_;
 
   Conds conds_;
   CodeGen gen_;
   bool has_unsafe_traps_;
 
   DISALLOW_COPY_AND_ASSIGN(PolicyCompiler);
 };
 
 }  // namespace bpf_dsl
 }  // namespace sandbox
 
 #endif  // SANDBOX_LINUX_BPF_DSL_POLICY_COMPILER_H_