Add the QuicRandom interface with a default implementation that is

net/net.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
 
     'linux_link_kerberos%': 0,
     'conditions': [
@@ skipping 643 matching lines @@
         'quic/congestion_control/quic_send_scheduler.h',
         'quic/congestion_control/receive_algorithm_interface.cc',
         'quic/congestion_control/receive_algorithm_interface.h',
         'quic/congestion_control/send_algorithm_interface.cc',
         'quic/congestion_control/send_algorithm_interface.h',
         'quic/crypto/crypto_framer.cc',
         'quic/crypto/crypto_framer.h',
         'quic/crypto/crypto_protocol.cc',
         'quic/crypto/crypto_protocol.h',
         'quic/crypto/null_decrypter.cc',
+        'quic/crypto/null_decrypter.h',
         'quic/crypto/null_encrypter.cc',
+        'quic/crypto/null_encrypter.h',
+        'quic/crypto/quic_decrypter.cc',
         'quic/crypto/quic_decrypter.h',
-        'quic/crypto/quic_decrypter.cc',
+        'quic/crypto/quic_encrypter.cc',
         'quic/crypto/quic_encrypter.h',
-        'quic/crypto/quic_encrypter.cc',
+        'quic/crypto/quic_random.cc',
+        'quic/crypto/quic_random.h',
         'quic/quic_client_session.cc',
         'quic/quic_client_session.h',
         'quic/quic_crypto_client_stream.cc',
         'quic/quic_crypto_client_stream.h',
         'quic/quic_crypto_stream.cc',
         'quic/quic_crypto_stream.h',
         'quic/quic_clock.cc',
         'quic/quic_clock.h',
         'quic/quic_connection.cc',
         'quic/quic_connection.h',
@@ skipping 752 matching lines @@
         'proxy/proxy_service_unittest.cc',
         'proxy/sync_host_resolver_bridge_unittest.cc',
         'quic/congestion_control/fix_rate_test.cc',
         'quic/congestion_control/leaky_bucket_test.cc',
         'quic/congestion_control/paced_sender_test.cc',
         'quic/congestion_control/quic_receipt_metrics_collector_test.cc',
         'quic/congestion_control/quic_send_scheduler_test.cc',
         'quic/crypto/crypto_framer_test.cc',
         'quic/crypto/null_decrypter_test.cc',
         'quic/crypto/null_encrypter_test.cc',
+        'quic/crypto/quic_random_test.cc',
         'quic/test_tools/mock_clock.cc',
         'quic/test_tools/mock_clock.h',
         'quic/test_tools/quic_test_utils.cc',
         'quic/test_tools/quic_test_utils.h',
         'quic/test_tools/test_task_runner.cc',
         'quic/test_tools/test_task_runner.h',
         'quic/quic_client_session_test.cc',
         'quic/quic_clock_test.cc',
         'quic/quic_connection_helper_test.cc',
         'quic/quic_connection_test.cc',
@@ skipping 915 matching lines @@
                 '--result', '<@(_outputs)',
                 '--isolate', 'net_unittests.isolate',
               ],
             },
           ],
         },
       ],
     }],
   ],
 }