Move webrtc/{base => rtc_base}

webrtc/base/random.h

 /*
  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_BASE_RANDOM_H_
 #define WEBRTC_BASE_RANDOM_H_
 
-#include <limits>
 
-#include "webrtc/typedefs.h"
-#include "webrtc/base/constructormagic.h"
-#include "webrtc/base/checks.h"
-
-namespace webrtc {
-
-class Random {
- public:
-  // TODO(tommi): Change this so that the seed can be initialized internally,
-  // e.g. by offering two ways of constructing or offer a static method that
-  // returns a seed that's suitable for initialization.
-  // The problem now is that callers are calling clock_->TimeInMicroseconds()
-  // which calls TickTime::Now().Ticks(), which can return a very low value on
-  // Mac and can result in a seed of 0 after conversion to microseconds.
-  // Besides the quality of the random seed being poor, this also requires
-  // the client to take on extra dependencies to generate a seed.
-  // If we go for a static seed generator in Random, we can use something from
-  // webrtc/base and make sure that it works the same way across platforms.
-  // See also discussion here: https://codereview.webrtc.org/1623543002/
-  explicit Random(uint64_t seed);
-
-  // Return pseudo-random integer of the specified type.
-  // We need to limit the size to 32 bits to keep the output close to uniform.
-  template <typename T>
-  T Rand() {
-    static_assert(std::numeric_limits<T>::is_integer &&
-                      std::numeric_limits<T>::radix == 2 &&
-                      std::numeric_limits<T>::digits <= 32,
-                  "Rand is only supported for built-in integer types that are "
-                  "32 bits or smaller.");
-    return static_cast<T>(NextOutput());
-  }
-
-  // Uniformly distributed pseudo-random number in the interval [0, t].
-  uint32_t Rand(uint32_t t);
-
-  // Uniformly distributed pseudo-random number in the interval [low, high].
-  uint32_t Rand(uint32_t low, uint32_t high);
-
-  // Uniformly distributed pseudo-random number in the interval [low, high].
-  int32_t Rand(int32_t low, int32_t high);
-
-  // Normal Distribution.
-  double Gaussian(double mean, double standard_deviation);
-
-  // Exponential Distribution.
-  double Exponential(double lambda);
-
- private:
-  // Outputs a nonzero 64-bit random number.
-  uint64_t NextOutput() {
-    state_ ^= state_ >> 12;
-    state_ ^= state_ << 25;
-    state_ ^= state_ >> 27;
-    RTC_DCHECK(state_ != 0x0ULL);
-    return state_ * 2685821657736338717ull;
-  }
-
-  uint64_t state_;
-
-  RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(Random);
-};
-
-// Return pseudo-random number in the interval [0.0, 1.0).
-template <>
-float Random::Rand<float>();
-
-// Return pseudo-random number in the interval [0.0, 1.0).
-template <>
-double Random::Rand<double>();
-
-// Return pseudo-random boolean value.
-template <>
-bool Random::Rand<bool>();
-
-}  // namespace webrtc
+// This header is deprecated and is just left here temporarily during
+// refactoring. See https://bugs.webrtc.org/7634 for more details.
+#include "webrtc/rtc_base/random.h"
 
 #endif  // WEBRTC_BASE_RANDOM_H_