WebRTC: Repurpose GN bots to GYP for all but iOS

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.
 
 slaves = [
   # Linux 64-bit.
   {
     'master': 'WebRTC',
     'os': 'linux',
     'version': 'trusty',
     'bits': '64',
     'builder': [
       'Android32 Builder',
       'Android32 Builder (dbg)',
       'Android32 Builder x86',
       'Android32 Builder x86 (dbg)',
       'Android32 Builder MIPS (dbg)',
       'Android32 Clang (dbg)',
       'Android64 Builder',
       'Android64 Builder (dbg)',
       'Android64 Builder x64 (dbg)',
-      'Android32 GN',
-      'Android32 GN (dbg)',
+      'Android32 GYP',
+      'Android32 GYP (dbg)',
       'Linux32 ARM',
       'Linux64 Debug',
       'Linux64 Release',
-      'Linux64 Debug (GN)',
-      'Linux64 Release (GN)',
+      'Linux64 Debug (GYP)',
+      'Linux64 Release (GYP)',
       'Linux64 Release (Libfuzzer)',
       'Linux Asan',
       'Linux MSan',
       'Linux Tsan v2',
       'Linux UBSan',
       'Linux UBSan vptr',
     ],
     'hostname': 'slave%d-c3' % i,
   } for i in range(6, 10) + range(13, 21) + [78]
 ] + [
@@ skipping 83 matching lines @@
       'iOS32 Release',
       'iOS64 Debug',
       'iOS64 Release',
       'iOS32 Simulator Debug',
       'iOS64 Simulator Debug',
       'iOS64 Debug (GN)',
       'iOS64 Release (GN)',
       'iOS API Framework Builder',
       'Mac64 Debug',
       'Mac64 Release',
-      'Mac64 Debug (GN)',
-      'Mac64 Release (GN)',
+      'Mac64 Debug (GYP)',
+      'Mac64 Release (GYP)',
       'Mac Asan',
     ],
     'hostname': 'vm%d-m3' % i,
   } for i in range(672, 675) + [612, 677]
 ] + [
   # Mac, bare-metal.
   {
     'master': 'WebRTC',
     'os': 'mac',
     'version': '10.10',
     'bits': '64',
     'builder': [
       'Mac64 Release [large tests]',
     ],
     'hostname': 'build4-b3',
   },
 ] + [
   # Windows.
   {
     'master': 'WebRTC',
     'os': 'win',
     'version': 'win7',
     'bits': '64',
     'builder': [
       'Win32 Debug',
       'Win32 Release',
       'Win64 Debug',
       'Win64 Release',
-      'Win64 Debug (GN)',
-      'Win64 Release (GN)',
+      'Win64 Debug (GYP)',
+      'Win64 Release (GYP)',
       'Win32 Debug (Clang)',
       'Win32 Release (Clang)',
       'Win64 Debug (Clang)',
       'Win64 Release (Clang)',
       'Win SyzyASan',
     ],
     'hostname': 'vm%d-m3' % i,
   } for i in [162, 168, 169, 193] + range(87, 91)
 ] + [
   {
@@ skipping 22 matching lines @@
     'master': 'WebRTC',
     'os': 'win',
     'version': 'win7',
     'bits': '64',
     'builder': [
       'Win32 Release [large tests]',
     ],
     'hostname': 'build20-b3',
   }
 ]