Add testing spec and mb config for unswarmed android trybots.

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 476 matching lines @@
       'android_compile_rel': 'android_release_trybot',
       'android_compile_x64_dbg': 'android_debug_trybot_x64',
       'android_compile_x86_dbg': 'android_debug_trybot_x86',
       'android_coverage': 'android_debug_trybot_java_coverage',
       'android_cronet': 'android_cronet_release_trybot_arm_no_neon',
 
       # TODO(crbug/597596): Switch this back to debug_trybot when cronet's
       # shared library loading is fixed.
       'android_cronet_tester': 'android_cronet_debug_static_bot_arm_no_neon',
 
+      'android_n5x_swarming_dbg': 'android_debug_trybot_arm64',
       'android_n5x_swarming_rel': 'android_release_trybot_arm64',
       'android_optional_gpu_tests_rel': 'gpu_tests_deqp_android_release_trybot_arm64',
+      'android_unswarmed_n5_rel': 'android_release_trybot',
+      'android_unswarmed_n5x_rel': 'android_release_trybot_arm64',
       'cast_shell_android': 'android_cast_debug_static_bot',
       'linux_android_dbg_ng': 'android_debug_trybot',
       'linux_android_rel_ng': 'android_release_trybot',
     },
 
     'tryserver.chromium.angle': {
       'android_angle_rel_ng': 'gpu_tests_deqp_android_release_trybot_arm64',
       'linux_angle_chromeos_rel_ng': 'gpu_fyi_tests_chromeos_release_trybot',
       'linux_angle_dbg_ng': 'gpu_fyi_tests_debug_trybot',
       'linux_angle_rel_ng': 'gpu_fyi_tests_release_trybot',
@@ skipping 1362 matching lines @@
 
     'x64': {
       'gn_args': 'target_cpu="x64"',
     },
 
     'x86': {
       'gn_args': 'target_cpu="x86"',
     },
   },
 }