Add JSON and MB configs for the internal iOS bots.

tools_webrtc/mb/mb_config.pyl

 # Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 # FOR DETAILS ON THIS FILE SEE THE MAIN COPY IN //tools/mb/mb_config.pyl.
 # This is configuration for standalone WebRTC bots. It is used to keep the bot
@@ skipping 97 matching lines @@
       'Win64 Debug (Win10)': 'debug_bot_x64',
     },
     'chromium.infra.codesearch': {
       'codesearch-gen-webrtc-android': {
         'android': 'android_debug_static_bot_arm',
       },
       'codesearch-gen-webrtc-linux': {
         'linux': 'codesearch_gen_linux_bot',
       }
     },
+    'internal.client.webrtc': {
+      'iOS64 Debug': 'ios',
+    },
+    'internal.tryserver.webrtc': {
+      'ios_arm64': 'ios',
+    },
     'tryserver.webrtc': {
       # iOS
       'ios_dbg': 'ios',
       'ios_rel': 'ios',
       'ios_arm64_dbg': 'ios',
       'ios_arm64_rel': 'ios',
       'ios32_sim_ios9_dbg': 'ios',
       'ios64_sim_ios9_dbg': 'ios',
       'ios64_sim_ios10_dbg': 'ios',
 
@@ skipping 332 matching lines @@
 
     'x64': {
       'gn_args': 'target_cpu="x64"',
     },
 
     'x86': {
       'gn_args': 'target_cpu="x86"',
     },
   },
 }