WebRTC: Repurpose GN bots to GYP for all but iOS

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.
 
 slaves = [
   # Linux.
   {
     'master': 'WebRTCTryServer',
     'os': 'linux',
     'version': 'trusty',
     'bits': '64',
     'builder': [
       'android_clang_dbg',
       'android_compile_dbg',
       'android_compile_rel',
       'android_compile_arm64_dbg',
       'android_compile_arm64_rel',
       'android_compile_mips_dbg',
       'android_compile_x86_rel',
       'android_compile_x86_dbg',
       'android_compile_x64_dbg',
-      'android_gn_dbg',
-      'android_gn_rel',
+      'android_gyp_dbg',
+      'android_gyp_rel',
       'linux_compile_dbg',
       'linux_compile_rel',
       'linux_dbg',
       'linux_rel',
-      'linux_gn_dbg',
-      'linux_gn_rel',
+      'linux_gyp_dbg',
+      'linux_gyp_rel',
       'linux_libfuzzer_rel',
       'linux_arm',
       'linux_asan',
       'linux_memcheck',
       'linux_msan',
       'linux_swarming',
       'linux_tsan2',
       'linux_ubsan',
       'linux_ubsan_vptr',
       'presubmit',
@@ skipping 63 matching lines @@
     'os': 'mac',
     'version': '10.10',
     'bits': '64',
     'builder': [
       'mac_asan',
       'mac_compile_dbg',
       'mac_compile_rel',
       'mac_dbg',
       'mac_rel',
       'mac_swarming',
-      'mac_gn_dbg',
-      'mac_gn_rel',
+      'mac_gyp_dbg',
+      'mac_gyp_rel',
       'ios_dbg',
       'ios_rel',
       'ios_arm64_dbg',
       'ios_arm64_rel',
       'ios_api_framework',
       'ios32_sim_dbg',
       'ios64_sim_dbg',
       'ios64_gn_dbg',
       'ios64_gn_rel',
     ],
@@ skipping 21 matching lines @@
     'bits': '64',
     'builder': [
       'win_compile_dbg',
       'win_compile_rel',
       'win_compile_x64_dbg',
       'win_compile_x64_rel',
       'win_dbg',
       'win_rel',
       'win_x64_dbg',
       'win_x64_rel',
-      'win_x64_gn_dbg',
-      'win_x64_gn_rel',
+      'win_x64_gyp_dbg',
+      'win_x64_gyp_rel',
       'win_clang_dbg',
       'win_clang_rel',
       'win_x64_clang_dbg',
       'win_x64_clang_rel',
       'win_asan',
       'win_drmemory_light',
       'win_drmemory_full',
       'win_swarming',
     ],
     'hostname': 'vm%d-m4' % i,
   } for i in range(207, 209) + [133, 212, 234, 263, 363, 407, 495]
 ] + [
   # Windows bare-metal machines with audio devices and headsets.
   {
     'master': 'WebRTCTryServer',
     'os': 'win',
     'version': 'win7',
     'bits': '64',
     'builder': [
       'win_baremetal',
     ],
     'hostname': hostname,
   } for hostname in ['build143-b4', 'build139-b4']
 ]