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-rw-r--r--third_party/abseil_cpp/absl/random/internal/randen.h102
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diff --git a/third_party/abseil_cpp/absl/random/internal/randen.h b/third_party/abseil_cpp/absl/random/internal/randen.h
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index c2834aaf3d2c..000000000000
--- a/third_party/abseil_cpp/absl/random/internal/randen.h
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@@ -1,102 +0,0 @@
-// Copyright 2017 The Abseil Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      https://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef ABSL_RANDOM_INTERNAL_RANDEN_H_
-#define ABSL_RANDOM_INTERNAL_RANDEN_H_
-
-#include <cstddef>
-
-#include "absl/random/internal/platform.h"
-#include "absl/random/internal/randen_hwaes.h"
-#include "absl/random/internal/randen_slow.h"
-#include "absl/random/internal/randen_traits.h"
-
-namespace absl {
-ABSL_NAMESPACE_BEGIN
-namespace random_internal {
-
-// RANDen = RANDom generator or beetroots in Swiss German.
-// 'Strong' (well-distributed, unpredictable, backtracking-resistant) random
-// generator, faster in some benchmarks than std::mt19937_64 and pcg64_c32.
-//
-// Randen implements the basic state manipulation methods.
-class Randen {
- public:
-  static constexpr size_t kStateBytes = RandenTraits::kStateBytes;
-  static constexpr size_t kCapacityBytes = RandenTraits::kCapacityBytes;
-  static constexpr size_t kSeedBytes = RandenTraits::kSeedBytes;
-
-  ~Randen() = default;
-
-  Randen();
-
-  // Generate updates the randen sponge. The outer portion of the sponge
-  // (kCapacityBytes .. kStateBytes) may be consumed as PRNG state.
-  template <typename T, size_t N>
-  void Generate(T (&state)[N]) const {
-    static_assert(N * sizeof(T) == kStateBytes,
-                  "Randen::Generate() requires kStateBytes of state");
-#if ABSL_RANDOM_INTERNAL_AES_DISPATCH
-    // HW AES Dispatch.
-    if (has_crypto_) {
-      RandenHwAes::Generate(keys_, state);
-    } else {
-      RandenSlow::Generate(keys_, state);
-    }
-#elif ABSL_HAVE_ACCELERATED_AES
-    // HW AES is enabled.
-    RandenHwAes::Generate(keys_, state);
-#else
-    // HW AES is disabled.
-    RandenSlow::Generate(keys_, state);
-#endif
-  }
-
-  // Absorb incorporates additional seed material into the randen sponge.  After
-  // absorb returns, Generate must be called before the state may be consumed.
-  template <typename S, size_t M, typename T, size_t N>
-  void Absorb(const S (&seed)[M], T (&state)[N]) const {
-    static_assert(M * sizeof(S) == RandenTraits::kSeedBytes,
-                  "Randen::Absorb() requires kSeedBytes of seed");
-
-    static_assert(N * sizeof(T) == RandenTraits::kStateBytes,
-                  "Randen::Absorb() requires kStateBytes of state");
-#if ABSL_RANDOM_INTERNAL_AES_DISPATCH
-    // HW AES Dispatch.
-    if (has_crypto_) {
-      RandenHwAes::Absorb(seed, state);
-    } else {
-      RandenSlow::Absorb(seed, state);
-    }
-#elif ABSL_HAVE_ACCELERATED_AES
-    // HW AES is enabled.
-    RandenHwAes::Absorb(seed, state);
-#else
-    // HW AES is disabled.
-    RandenSlow::Absorb(seed, state);
-#endif
-  }
-
- private:
-  const void* keys_;
-#if ABSL_RANDOM_INTERNAL_AES_DISPATCH
-  bool has_crypto_;
-#endif
-};
-
-}  // namespace random_internal
-ABSL_NAMESPACE_END
-}  // namespace absl
-
-#endif  // ABSL_RANDOM_INTERNAL_RANDEN_H_