Add arm/tegra2 CQ builders and major cleanup of dead code in chromeos_factory.

masters/master.tryserver.chromium/master.cfg

 # -*- python -*-
 # ex: set syntax=python:
 # Copyright (c) 2011 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.
 
 # READ THIS:
 # See http://dev.chromium.org/developers/testing/chromium-build-infrastructure
 
 # These modules come from scripts, which must be in the PYTHONPATH.
@@ skipping 117 matching lines @@
   # Sets up a factory with the steps to pull out a chromium source tree and
   # apply a patch from a try job
   trial_chrome_factory = m_chromium_chromiumos.ChromiumOSFactory(
       target=None,
       slave_type='CrossTry',
       tests=[],
       )
 
   # Extends that factory with a Cbuildbot build steps to build and test
   # CrOS using the chrome from the above chromium source tree
-  builder_factory = chromeos_factory.ChromeCbuildbotFactory(
+  builder_factory = chromeos_factory.CbuildbotFactory(
       params=target,
       buildroot=buildroot,
       crostools_repo=None,
       dry_run=True,
       chrome_root='.', # this is where ChromiumOSFactory has put "Chrome"
       factory=trial_chrome_factory,
       slave_manager=False,
       ).get_factory()
 
   builder_info = {
@@ skipping 916 matching lines @@
 ####### PROJECT IDENTITY
 
 # The 'projectURL' string will be used to provide a link
 # from buildbot HTML pages to your project's home page.
 c['projectURL'] = 'http://dev.chromium.org/developers/testing/try-server-usage'
 
 # Buildbot master url:
 c['buildbotURL'] = 'http://build.chromium.org/p/tryserver.chromium/'
 
 # vi: set ts=4 sts=2 sw=2 et: