Refactor WebRTC master configs.

masters/master.tryserver.webrtc/master.cfg

Index: masters/master.tryserver.webrtc/master.cfg
diff --git a/masters/master.tryserver.webrtc/master.cfg b/masters/master.tryserver.webrtc/master.cfg
index aa3b078b02129c96b4f5cd9394c8a6c4deefe7b1..f23f554f7ece64a84f90fe8a16a41aa3f200f7af 100755
--- a/masters/master.tryserver.webrtc/master.cfg
+++ b/masters/master.tryserver.webrtc/master.cfg
@@ -41,19 +41,17 @@ url = config.Master.webrtc_url
 branch = 'trunk'
 
 def linux():
-  return webrtc_factory.WebRTCFactory('src/out', 'linux2', url, branch)
+  return webrtc_factory.WebRTCFactory('src/out', 'linux2')
 def mac():
-  return webrtc_factory.WebRTCFactory('src/out', 'darwin', url, branch)
+  return webrtc_factory.WebRTCFactory('src/out', 'darwin')
 def macIos():
-  return webrtc_factory.WebRTCFactory('', 'darwin', url, branch,
-                                      nohooks_on_update=True)
+  return webrtc_factory.WebRTCFactory('', 'darwin', nohooks_on_update=True)
 def win():
-  return webrtc_factory.WebRTCFactory('src/build', 'win32', url, branch)
+  return webrtc_factory.WebRTCFactory('src/build', 'win32')
 def winNinja():
-  return webrtc_factory.WebRTCFactory('src/out', 'win32', url, branch)
+  return webrtc_factory.WebRTCFactory('src/out', 'win32')
 def android():
-  return webrtc_factory.WebRTCFactory('', 'linux2', url, branch,
-                                      nohooks_on_update=True,
+  return webrtc_factory.WebRTCFactory('', 'linux2', nohooks_on_update=True,
                                       target_os='android')
 
 tests = [