Enabling enable_vr_shell flag and tests on chromium.android

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 737 matching lines @@
 
     'android_cronet_release_trybot_arm_no_neon': [
       'android', 'cronet', 'release_trybot', 'arm_no_neon',
     ],
 
     'android_debug_bot': [
       'android', 'debug_bot',
     ],
 
     'android_debug_static_bot': [
-      'android', 'debug_static_bot',
+      'android', 'debug_static_bot', 'vr_shell',
     ],
 
     'android_debug_static_bot_arm64': [
-      'android', 'debug_static_bot', 'arm64',
+      'android', 'debug_static_bot', 'arm64', 'vr_shell',
     ],
 
     'android_debug_trybot': [
       'android', 'debug_trybot',
     ],
 
     'android_debug_trybot_arm64': [
       'android', 'debug_trybot', 'arm64',
     ],
 
@@ skipping 1026 matching lines @@
       'gn_args': 'target_cpu="x86"',
     },
 
     'drfuzz': { 'gn_args': 'use_drfuzz=true' },
 
     'drmemory': {
       'gn_args': 'is_component_build=true enable_iterator_debugging=false',
     },
   },
 }