[Cronet] Use use_partition_alloc GN arg in Cronet

tools/mb/mb_config.pyl

 # Copyright 2015 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 is a map of buildbot master names -> buildbot builder names ->
   # config names (where each config name is a key in the 'configs' dict,
   # below). MB uses this dict to look up which config to use for a given bot.
   'masters': {
     'chromeos.chrome': {
@@ skipping 1568 matching lines @@
       'mixins': ['clang'],
     },
 
     'clang': {
       'gn_args': 'is_clang=true',
     },
 
     'cronet': {
       'gn_args': ('disable_file_support=true disable_ftp_support=true '
                   'enable_websockets=false use_platform_icu_alternatives=true '
-                  'disable_brotli_filter=true'),
+                  'disable_brotli_filter=true use_partition_alloc=false'),
     },
 
     'cros_chrome_sdk': {
       # This is used so that the cros chrome_sdk (simplechrome) builders
       # can manage the list of GN args in their .ebuild
       # files and just pass through the desired arguments, hence not
       # really using MB. If a bot uses this mixin, we expect that
       # both GYP_DEFINES and GN_ARGS are set in the environment,
       # and that GYP_DEFINES has chromeos=1 and GN_ARGS has
       # target_os="chromeos" in it.
@@ skipping 260 matching lines @@
 
     'x64': {
       'gn_args': 'target_cpu="x64"',
     },
 
     'x86': {
       'gn_args': 'target_cpu="x86"',
     },
   },
 }