Convert class-full-of-statics CryptoTestUtils into a namespace

net/quic/core/quic_crypto_client_stream.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_CORE_QUIC_CRYPTO_CLIENT_STREAM_H_
 #define NET_QUIC_CORE_QUIC_CRYPTO_CLIENT_STREAM_H_
 
 #include <cstdint>
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "net/quic/core/crypto/channel_id.h"
 #include "net/quic/core/crypto/proof_verifier.h"
 #include "net/quic/core/crypto/quic_crypto_client_config.h"
 #include "net/quic/core/quic_config.h"
 #include "net/quic/core/quic_crypto_stream.h"
 #include "net/quic/core/quic_server_id.h"
 #include "net/quic/platform/api/quic_export.h"
 
 namespace net {
 
 namespace test {
-class CryptoTestUtils;
 class QuicChromiumClientSessionPeer;
 }  // namespace test
 
 class QUIC_EXPORT_PRIVATE QuicCryptoClientStreamBase : public QuicCryptoStream {
  public:
   explicit QuicCryptoClientStreamBase(QuicSession* session);
 
   ~QuicCryptoClientStreamBase() override{};
 
   // Performs a crypto handshake with the server.
@@ skipping 100 matching lines @@
              std::unique_ptr<ProofVerifyDetails>* details) override;
 
     // Cancel causes any future callbacks to be ignored. It must be called on
     // the same thread as the callback will be made on.
     void Cancel();
 
    private:
     QuicCryptoClientStream* stream_;
   };
 
-  friend class test::CryptoTestUtils;
   friend class test::QuicChromiumClientSessionPeer;
 
   enum State {
     STATE_IDLE,
     STATE_INITIALIZE,
     STATE_SEND_CHLO,
     STATE_RECV_REJ,
     STATE_VERIFY_PROOF,
     STATE_VERIFY_PROOF_COMPLETE,
     STATE_GET_CHANNEL_ID,
@@ skipping 115 matching lines @@
   base::TimeTicks proof_verify_start_time_;
 
   int num_scup_messages_received_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicCryptoClientStream);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CORE_QUIC_CRYPTO_CLIENT_STREAM_H_