Revert "build: roll infra_paths changes"

scripts/slave/recipe_modules/skia/valgrind_flavor.py

 # Copyright 2014 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.
 
 
 import default_flavor
 
 
 """Utils for running under Valgrind."""
 
 
 class ValgrindFlavorUtils(default_flavor.DefaultFlavorUtils):
   def __init__(self, *args, **kwargs):
     super(ValgrindFlavorUtils, self).__init__(*args, **kwargs)
-    self._suppressions_file = self._skia_api.m.infra_paths['slave_build'].join(
+    self._suppressions_file = self._skia_api.m.path['slave_build'].join(
         'skia', 'tools', 'valgrind.supp')
 
   def step(self, name, cmd, **kwargs):
     new_cmd = ['valgrind', '--gen-suppressions=all', '--leak-check=full',
                '--track-origins=yes', '--error-exitcode=1', '--num-callers=40',
                '--suppressions=%s' % self._suppressions_file]
     path_to_app = self._skia_api.out_dir.join(
         self._skia_api.configuration, cmd[0])
     new_cmd.append(path_to_app)
     new_cmd.extend(cmd[1:])
     return self._skia_api.run(self._skia_api.m.step, name, cmd=new_cmd,
                               **kwargs)