WebRTC: Reshuffle Mac trybot slaves.

masters/master.tryserver.webrtc/slaves.cfg

 # Copyright (c) 2012 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.
 
 # Pool the builders over all the slave machines, as a WebRTC checkout is only
 # about 1.5 GB including source code and compiled artifacts.
 slaves = [
   # Linux.
   {
     'master': 'WebRTCTryServer',
@@ skipping 81 matching lines @@
   # Mac.
   {
     'master': 'WebRTCTryServer',
     'os': 'mac',
     'version': '10.8',
     'bits': '64',
     'builder': [
       'mac',
       'mac_rel',
       'mac_x64_rel',
-      'mac_x64_gn',
-      'mac_x64_gn_rel',
-      'mac_asan',
       'ios',
       'ios_rel',
       'ios_arm64',
       'ios_arm64_rel',
     ],
     'hostname': 'vm%d-m4' % i,
-  } for i in range(738, 741) + range(818, 820)
+  } for i in range(738, 741) + [818]
 ] + [
+  {
+    'master': 'WebRTCTryServer',
+    'os': 'mac',
+    'version': '10.8',
+    'bits': '64',
+    'builder': [
+      'mac_asan',
+      'mac_x64_gn',
+      'mac_x64_gn_rel',
+    ],
+    'hostname': 'vm819-m4',
+  },
   # Mac bare-metal machines with audio devices and headsets.
   {
     'master': 'WebRTCTryServer',
     'os': 'mac',
     'version': '10.8',
     'bits': '64',
     'builder': [
       'mac_baremetal',
     ],
     'hostname': 'build24-a4',
@@ skipping 31 matching lines @@
     'master': 'WebRTCTryServer',
     'os': 'win',
     'version': 'win7',
     'bits': '64',
     'builder': [
       'win_baremetal',
     ],
     'hostname': 'build23-a4',
   }
 ]