[webkitpy] Merge ChromiumBuildBot class into the BuildBot class.

Tools/Scripts/webkitpy/common/net/buildbot/buildbot.py

 # Copyright (c) 2009, Google Inc. 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 disclaimer
@@ skipping 36 matching lines @@
     def __init__(self, name, buildbot):
         self._name = name
         self._buildbot = buildbot
         self._builds_cache = {}
         self._revision_to_build_number = None
 
     def name(self):
         return self._name
 
     def results_url(self):
-        return "%s/results/%s" % (self._buildbot.buildbot_url, self.url_encoded_name())
+        return config_urls.chromium_results_url_base_for_builder(self._name)
 
-    # In addition to per-build results, the build.chromium.org builders also
-    # keep a directory that accumulates test results over many runs.
     def accumulated_results_url(self):
-        return None
+        return config_urls.chromium_accumulated_results_url_base_for_builder(self._name)
 
     def latest_layout_test_results_url(self):
         return self.accumulated_results_url() or self.latest_cached_build().results_url();
 
     @memoized
     def latest_layout_test_results(self):
         return self.fetch_layout_test_results(self.latest_layout_test_results_url())
 
     def _fetch_file_from_results(self, results_url, file_name):
         # It seems this can return None if the url redirects and then returns 404.
@@ skipping 137 matching lines @@
         return self._is_green
 
     def previous_build(self):
         # previous_build() allows callers to avoid assuming build numbers are sequential.
         # They may not be sequential across all master changes, or when non-trunk builds are made.
         return self._builder.build(self._number - 1)
 
 
 class BuildBot(object):
     _builder_factory = Builder
-    _default_url = config_urls.buildbot_url
+    _default_url = config_urls.chromium_buildbot_url
 
     def __init__(self, url=None):
         self.buildbot_url = url if url else self._default_url
         self._builder_by_name = {}
 
     def _parse_last_build_cell(self, builder, cell):
         status_link = cell.find('a')
         if status_link:
             # Will be either a revision number or a build number
             revision_string = status_link.string
@@ skipping 166 matching lines @@
 
             builders_succeeded_in_past = set()
             for past_revision in revisions_in_order[i:]:
                 if not revision_statuses[past_revision]:
                     break
                 builders_succeeded_in_past = builders_succeeded_in_past.union(revision_statuses[past_revision])
 
             if len(builders_succeeded_in_future) == len(builder_revisions) and len(builders_succeeded_in_past) == len(builder_revisions):
                 return revision
         return None