convert most webrtc builders to remote_run

masters/master.client.webrtc.fyi/master_linux_cfg.py

 # Copyright 2013 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.
 
 from buildbot.scheduler import Nightly
 from buildbot.schedulers.basic import SingleBranchScheduler
 
 from master.factory import annotator_factory
+from master.factory import remote_run_factory
+
+import master_site_config
+ActiveMaster = master_site_config.WebRTCFYI
+
+
+def m_remote_run(recipe, **kwargs):
+  return remote_run_factory.RemoteRunFactory(
+      active_master=ActiveMaster,
+      repository='https://chromium.googlesource.com/chromium/tools/build.git',
+      recipe=recipe,
+      factory_properties={'path_config': 'kitchen'},
+      **kwargs)
+
 
 m_annotator = annotator_factory.AnnotatorFactory()
 
+
 def Update(c):
   c['schedulers'].extend([
       SingleBranchScheduler(name='webrtc_linux_scheduler',
                             branch='master',
                             treeStableTimer=0,
                             builderNames=[
                                 'Linux64 GCC',
                                 'Linux64 Release (swarming)',
       ]),
       # Run WebRTC DEPS roller at CET hours: 4am, 12pm and 8pm.
@@ skipping 17 matching lines @@
     {
       'name': 'Auto-roll - WebRTC DEPS',
       'recipe': 'webrtc/auto_roll_webrtc_deps',
       'slavebuilddir': 'linux_autoroll',
     },
   ]
 
   c['builders'].extend([
       {
         'name': spec['name'],
-        'factory': m_annotator.BaseFactory(spec.get('recipe',
-                                                    'webrtc/standalone')),
+        'factory': m_annotator.BaseFactory(spec['recipe'])
+                   if 'recipe' in spec
+                   else m_remote_run('webrtc/standalone'),
         'notify_on_missing': True,
         'category': 'linux',
         'slavebuilddir': spec['slavebuilddir'],
         'auto_reboot': False,
       } for spec in specs
   ])