Create a QUIC wrapper around a mutex and a mutex lock.

net/net.gypi

 # Copyright 2014 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.
 
 # This file is shared between the regular GYP build, the NaCl GYP build, and
 # the GN build. For GN support, it must have no conditionals or anything like
 # that beyond the simple one-level-deep dictionary of values.
 {
   'variables': {
     # Subset of net source files that are compiled for NaCl (net_nacl target).
@@ skipping 1197 matching lines @@
       'quic/core/quic_versions.h',
       'quic/core/quic_write_blocked_list.cc',
       'quic/core/quic_write_blocked_list.h',
       'quic/core/spdy_utils.cc',
       'quic/core/spdy_utils.h',
       'quic/platform/api/quic_clock.cc',
       'quic/platform/api/quic_clock.h',
       'quic/platform/api/quic_ip_address_family.h',
       'quic/platform/api/quic_ip_address.cc',
       'quic/platform/api/quic_ip_address.h',
+      'quic/platform/api/quic_mutex.cc',
+      'quic/platform/api/quic_mutex.h',
       'quic/platform/api/quic_socket_address.cc',
       'quic/platform/api/quic_socket_address.h',
       'quic/platform/impl/quic_chromium_clock.cc',
       'quic/platform/impl/quic_chromium_clock.h',
       'quic/platform/impl/quic_ip_address_impl.cc',
       'quic/platform/impl/quic_ip_address_impl.h',
+      'quic/platform/impl/quic_mutex_impl.cc',
+      'quic/platform/impl/quic_mutex_impl.h',
       'quic/platform/impl/quic_socket_address_impl.cc',
       'quic/platform/impl/quic_socket_address_impl.h',
       'quic/quartc/quartc_alarm_factory.cc',
       'quic/quartc/quartc_alarm_factory.h',
       'quic/quartc/quartc_factory.cc',
       'quic/quartc/quartc_factory.h',
       'quic/quartc/quartc_factory_interface.h',
       'quic/quartc/quartc_packet_writer.cc',
       'quic/quartc/quartc_packet_writer.h',
       'quic/quartc/quartc_session.cc',
@@ skipping 2279 matching lines @@
       'third_party/nist-pkits/crls/requireExplicitPolicy5subCACRL.crl',
       'third_party/nist-pkits/crls/requireExplicitPolicy5subsubCACRL.crl',
       'third_party/nist-pkits/crls/requireExplicitPolicy5subsubsubCACRL.crl',
       'third_party/nist-pkits/crls/requireExplicitPolicy7CACRL.crl',
       'third_party/nist-pkits/crls/requireExplicitPolicy7subCARE2CRL.crl',
       'third_party/nist-pkits/crls/requireExplicitPolicy7subsubCARE2RE4CRL.crl',
       'third_party/nist-pkits/crls/requireExplicitPolicy7subsubsubCARE2RE4CRL.crl',
     ],
   }
 }