Move QuicBufferAllocator into its own .cc/.h. No behavior change.

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 980 matching lines @@
       'quic/core/interval.h',
       'quic/core/interval_set.h',
       'quic/core/quic_address_mismatch.cc',
       'quic/core/quic_address_mismatch.h',
       'quic/core/quic_alarm.cc',
       'quic/core/quic_alarm.h',
       'quic/core/quic_arena_scoped_ptr.h',
       'quic/core/quic_bandwidth.cc',
       'quic/core/quic_bandwidth.h',
       'quic/core/quic_blocked_writer_interface.h',
+      'quic/core/quic_buffer_allocator.cc',
+      'quic/core/quic_buffer_allocator.h',
       'quic/core/quic_buffered_packet_store.cc',
       'quic/core/quic_buffered_packet_store.h',
       'quic/core/quic_bug_tracker.h',
       'quic/core/quic_client_promised_info.cc',
       'quic/core/quic_client_promised_info.h',
       'quic/core/quic_client_push_promise_index.cc',
       'quic/core/quic_client_push_promise_index.h',
       'quic/core/quic_client_session_base.cc',
       'quic/core/quic_client_session_base.h',
       'quic/core/quic_clock.cc',
@@ skipping 2285 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',
     ],
   }
 }