Remove remaining references to SVN.

third_party/WebKit/Tools/Scripts/webkitpy/common/webkit_finder.py

 # Copyright (c) 2012 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 69 matching lines @@
         self._env_path = os.environ['PATH'].split(os.pathsep)
         self._webkit_base = None
         self._chromium_base = None
         self._depot_tools = None
 
     def webkit_base(self):
         """Returns the absolute path to the top of the WebKit tree.
 
         Raises an AssertionError if the top dir can't be determined.
         """
-        # Note: This code somewhat duplicates the code in
-        # git.find_checkout_root(). However, that code only works if the top
-        # of the SCM repository also matches the top of the WebKit tree. Some SVN users
-        # (the chromium test bots, for example), might only check out subdirectories like
-        # Tools/Scripts. This code will also work if there is no SCM system at all.
-        # TODO(qyearsley): Remove duplicate code; we're not concerned with SVN users anymore.
-        # Also, instead of caching the result with a private instance variable, we can use
-        # the memoized decorator.
+        # TODO(qyearsley): This code somewhat duplicates the code in
+        # git.find_checkout_root().
         if not self._webkit_base:
             self._webkit_base = self._webkit_base
             module_path = self._filesystem.abspath(self._filesystem.path_to_module(self.__module__))
             tools_index = module_path.rfind('Tools')
             assert tools_index != -1, 'could not find location of this checkout from %s' % module_path
             self._webkit_base = self._filesystem.normpath(module_path[0:tools_index - 1])
         return self._webkit_base
 
     def chromium_base(self):
         if not self._chromium_base:
@@ skipping 61 matching lines @@
         prev_dir = ''
         current_dir = fs.dirname(self._webkit_base)
         while current_dir != prev_dir:
             if fs.exists(fs.join(current_dir, 'depot_tools', 'pylint.py')):
                 return fs.join(current_dir, 'depot_tools')
             prev_dir = current_dir
             current_dir = fs.dirname(current_dir)
 
     def path_from_depot_tools_base(self, *comps):
         return self._filesystem.join(self.depot_tools_base(), *comps)