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diff --git a/security/sandbox/chromium/base/cpu.h b/security/sandbox/chromium/base/cpu.h
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+// 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 BASE_CPU_H_
+#define BASE_CPU_H_
+
+#include <string>
+
+#include "base/base_export.h"
+
+namespace base {
+
+// Query information about the processor.
+class BASE_EXPORT CPU {
+ public:
+ // Constructor
+ CPU();
+
+ enum IntelMicroArchitecture {
+ PENTIUM,
+ SSE,
+ SSE2,
+ SSE3,
+ SSSE3,
+ SSE41,
+ SSE42,
+ AVX,
+ AVX2,
+ MAX_INTEL_MICRO_ARCHITECTURE
+ };
+
+ // Accessors for CPU information.
+ const std::string& vendor_name() const { return cpu_vendor_; }
+ int signature() const { return signature_; }
+ int stepping() const { return stepping_; }
+ int model() const { return model_; }
+ int family() const { return family_; }
+ int type() const { return type_; }
+ int extended_model() const { return ext_model_; }
+ int extended_family() const { return ext_family_; }
+ bool has_mmx() const { return has_mmx_; }
+ bool has_sse() const { return has_sse_; }
+ bool has_sse2() const { return has_sse2_; }
+ bool has_sse3() const { return has_sse3_; }
+ bool has_ssse3() const { return has_ssse3_; }
+ bool has_sse41() const { return has_sse41_; }
+ bool has_sse42() const { return has_sse42_; }
+ bool has_avx() const { return has_avx_; }
+ bool has_avx2() const { return has_avx2_; }
+ bool has_aesni() const { return has_aesni_; }
+ bool has_non_stop_time_stamp_counter() const {
+ return has_non_stop_time_stamp_counter_;
+ }
+ // has_broken_neon is only valid on ARM chips. If true, it indicates that we
+ // believe that the NEON unit on the current CPU is flawed and cannot execute
+ // some code. See https://code.google.com/p/chromium/issues/detail?id=341598
+ bool has_broken_neon() const { return has_broken_neon_; }
+
+ IntelMicroArchitecture GetIntelMicroArchitecture() const;
+ const std::string& cpu_brand() const { return cpu_brand_; }
+
+ private:
+ // Query the processor for CPUID information.
+ void Initialize();
+
+ int signature_; // raw form of type, family, model, and stepping
+ int type_; // process type
+ int family_; // family of the processor
+ int model_; // model of processor
+ int stepping_; // processor revision number
+ int ext_model_;
+ int ext_family_;
+ bool has_mmx_;
+ bool has_sse_;
+ bool has_sse2_;
+ bool has_sse3_;
+ bool has_ssse3_;
+ bool has_sse41_;
+ bool has_sse42_;
+ bool has_avx_;
+ bool has_avx2_;
+ bool has_aesni_;
+ bool has_non_stop_time_stamp_counter_;
+ bool has_broken_neon_;
+ std::string cpu_vendor_;
+ std::string cpu_brand_;
+};
+
+} // namespace base
+
+#endif // BASE_CPU_H_