Add tree control feature to auto-roll script.

tools/push-to-trunk/common_includes.py

 #!/usr/bin/env python
 # Copyright 2013 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
@@ skipping 177 matching lines @@
 
 
 # Wrapper for side effects.
 class SideEffectHandler(object):
   def Command(self, cmd, args="", prefix="", pipe=True):
     return Command(cmd, args, prefix, pipe)
 
   def ReadLine(self):
     return sys.stdin.readline().strip()
 
-  def ReadURL(self, url):
+  def ReadURL(self, url, params=None):
     # pylint: disable=E1121
-    url_fh = urllib2.urlopen(url, None, 60)
+    url_fh = urllib2.urlopen(url, params, 60)
     try:
       return url_fh.read()
     finally:
       url_fh.close()
 
   def Sleep(self, seconds):
     time.sleep(seconds)
 
   def GetDate(self):
     return datetime.date.today().strftime("%Y-%m-%d")
@@ skipping 85 matching lines @@
 
   def Git(self, args="", prefix="", pipe=True, retry_on=None):
     cmd = lambda: self._side_effect_handler.Command("git", args, prefix, pipe)
     return self.Retry(cmd, retry_on, [5, 30])
 
   def Editor(self, args):
     if self._options.requires_editor:
       return self._side_effect_handler.Command(os.environ["EDITOR"], args,
                                                pipe=False)
 
-  def ReadURL(self, url, retry_on=None, wait_plan=None):
+  def ReadURL(self, url, params=None, retry_on=None, wait_plan=None):
     wait_plan = wait_plan or [3, 60, 600]
-    cmd = lambda: self._side_effect_handler.ReadURL(url)
+    cmd = lambda: self._side_effect_handler.ReadURL(url, params)
     return self.Retry(cmd, retry_on, wait_plan)
 
   def GetDate(self):
     return self._side_effect_handler.GetDate()
 
   def Die(self, msg=""):
     if msg != "":
       print "Error: %s" % msg
     print "Exiting"
     raise Exception(msg)
@@ skipping 179 matching lines @@
               options,
               side_effect_handler=DEFAULT_SIDE_EFFECT_HANDLER):
   state = {}
   steps = []
   for (number, step_class) in enumerate(step_classes):
     steps.append(MakeStep(step_class, number, state, config,
                           options, side_effect_handler))
 
   for step in steps[options.s:]:
     step.Run()