WebRTC: Reshuffle Mac slaves in client.webrtc

masters/master.client.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 some builders over multiple slave machines, as a WebRTC checkout is only
 # about 1.5 GB including source code and compiled artifacts.
 slaves = [
   # Linux 32-bit.
   {
     'master': 'WebRTC',
@@ skipping 122 matching lines @@
     'os': 'mac',
     'version': '10.8',
     'bits': '64',
     'builder': [
       'iOS Debug',
       'iOS Release',
       'iOS ARM64 Debug',
       'iOS ARM64 Release',
       'Mac32 Debug',
       'Mac32 Release',
+    ],
+    'hostname': 'vm672-m3',
+  },
+  {
+    'master': 'WebRTC',
+    'os': 'mac',
+    'version': '10.8',
+    'bits': '64',
+    'builder': [
       'Mac64 Debug',
       'Mac64 Release',
       'Mac64 Debug (GN)',
       'Mac64 Release (GN)',
       'Mac Asan',
     ],
-    'hostname': 'vm%d-m3' % i,
-  } for i in range(672, 674)
-] + [
+    'hostname': 'vm673-m3',
+  },
   # Mac, bare-metal.
   {
     'master': 'WebRTC',
     'os': 'mac',
     'version': '10.8',
     'bits': '64',
     'builder': [
       'Mac32 Release [large tests]',
     ],
     'hostname': 'build23-a3',
@@ skipping 42 matching lines @@
     'master': 'WebRTC',
     'os': 'win',
     'version': 'win7',
     'bits': '64',
     'builder': [
       'Win32 Release [large tests]',
     ],
     'hostname': 'chromeperf90',
   }
 ]