Update from https://crrev.com/306655

sandbox/linux/bpf_dsl/bpf_dsl_impl.h

 // Copyright 2014 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_BPF_DSL_IMPL_H_
 #define SANDBOX_LINUX_BPF_DSL_BPF_DSL_IMPL_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "sandbox/sandbox_export.h"
@@ skipping 29 matching lines @@
 class ResultExprImpl : public base::RefCounted<ResultExprImpl> {
  public:
   // Compile uses |pc| to construct an ErrorCode analogous to the represented
   // result expression.
   virtual ErrorCode Compile(PolicyCompiler* pc) const = 0;
 
   // HasUnsafeTraps returns whether the result expression is or recursively
   // contains an unsafe trap expression.
   virtual bool HasUnsafeTraps() const;
 
+  // IsAllow returns whether the result expression is an "allow" result.
+  virtual bool IsAllow() const;
+
+  // IsAllow returns whether the result expression is a "deny" result.
+  virtual bool IsDeny() const;
+
  protected:
   ResultExprImpl() {}
   virtual ~ResultExprImpl() {}
 
  private:
   friend class base::RefCounted<ResultExprImpl>;
   DISALLOW_COPY_AND_ASSIGN(ResultExprImpl);
 };
 
 }  // namespace internal
 }  // namespace bpf_dsl
 }  // namespace sandbox
 
 #endif  // SANDBOX_LINUX_BPF_DSL_BPF_DSL_IMPL_H_