Move shared files in net/quic/ into net/quic/core/

net/quic/crypto/quic_random.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 NET_QUIC_CRYPTO_QUIC_RANDOM_H_
-#define NET_QUIC_CRYPTO_QUIC_RANDOM_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include "net/base/net_export.h"
-
-namespace net {
-
-// The interface for a random number generator.
-class NET_EXPORT_PRIVATE QuicRandom {
- public:
-  virtual ~QuicRandom() {}
-
-  // Returns the default random number generator, which is cryptographically
-  // secure and thread-safe.
-  static QuicRandom* GetInstance();
-
-  // Generates |len| random bytes in the |data| buffer.
-  virtual void RandBytes(void* data, size_t len) = 0;
-
-  // Returns a random number in the range [0, kuint64max].
-  virtual uint64_t RandUint64() = 0;
-
-  // Reseeds the random number generator with additional entropy input.
-  // NOTE: the constructor of a QuicRandom object is responsible for seeding
-  // itself with enough entropy input.
-  virtual void Reseed(const void* additional_entropy, size_t entropy_len) = 0;
-};
-
-}  // namespace net
-
-#endif  // NET_QUIC_CRYPTO_QUIC_RANDOM_H_