rebaseline-cl: Only support local branches, drop Rietveld support.

third_party/WebKit/Tools/Scripts/webkitpy/common/checkout/git.py

 # Copyright (c) 2009, 2010, 2011 Google Inc. All rights reserved.
 # Copyright (c) 2009 Apple 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
@@ skipping 219 matching lines @@
             # Special-case <refname>.. to include working copy changes, e.g., 'HEAD....' shows only the diffs from HEAD.
             if git_commit.endswith('....'):
                 return git_commit[:-4]
 
             if '..' not in git_commit:
                 git_commit = git_commit + "^.." + git_commit
             return git_commit
 
         return self._remote_merge_base()
 
-    def changed_files(self, git_commit=None):
+    def changed_files(self, git_commit=None, diff_filter='ADM'):
         # FIXME: --diff-filter could be used to avoid the "extract_filenames" step.
         status_command = ['diff', '-r', '--name-status',
                           "--no-renames", "--no-ext-diff", "--full-index", self._merge_base(git_commit)]
         # FIXME: I'm not sure we're returning the same set of files that SVN.changed_files is.
         # Added (A), Copied (C), Deleted (D), Modified (M), Renamed (R)
-        return self._run_status_and_extract_filenames(status_command, self._status_regexp("ADM"))
+        return self._run_status_and_extract_filenames(status_command, self._status_regexp(diff_filter))
 
     def added_files(self):
         return self._run_status_and_extract_filenames(self.status_command(), self._status_regexp("A"))
 
     def _run_status_and_extract_filenames(self, status_command, status_regexp):
         filenames = []
         # We run with cwd=self.checkout_root so that returned-paths are root-relative.
         for line in self._run_git(status_command, cwd=self.checkout_root).splitlines():
             match = re.search(status_regexp, line)
             if not match:
@@ skipping 155 matching lines @@
         if self.current_branch() != self._branch_tracking_remote_master():
             return False
         if len(self._local_commits(self._branch_tracking_remote_master())) > 0:
             return False
         return True
 
     def ensure_cleanly_tracking_remote_master(self):
         self._discard_working_directory_changes()
         self._run_git(['checkout', '-q', self._branch_tracking_remote_master()])
         self._discard_local_commits()