Extract functions from path recipe module so that step can depend on it

scripts/slave/recipe_modules/android/api.py

 # Copyright 2013 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.
 
 """Common steps for recipes that sync/build Android sources."""
 
 from slave import recipe_api
 
 class AOSPApi(recipe_api.RecipeApi):
   def __init__(self, **kwargs):
@@ skipping 43 matching lines @@
     # The version of repo checked into depot_tools doesn't support switching
     # between branches correctly due to
     # https://code.google.com/p/git-repo/issues/detail?id=46 which is why we use
     # the copy of repo from the Android tree.
     # The copy of repo from depot_tools is only used to bootstrap the Android
     # tree checkout.
     repo_in_android_path = self.c.build_path.join('.repo', 'repo', 'repo')
     repo_copy_dir = self.m.path['slave_build'].join('repo_copy')
     repo_copy_path = self.m.path['slave_build'].join('repo_copy', 'repo')
     if self.m.path.exists(repo_in_android_path):
-      self.m.path.makedirs('repo copy dir', repo_copy_dir)
+      self.m.file.makedirs('repo copy dir', repo_copy_dir)
       self.m.step('copy repo from Android', [
         'cp', repo_in_android_path, repo_copy_path])
       self.m.repo.repo_path = repo_copy_path
-    self.m.path.makedirs('android source root', self.c.build_path)
+    self.m.file.makedirs('android source root', self.c.build_path)
     self.m.repo.init(self.c.repo.url, '-b', self.c.repo.branch,
                            cwd=self.c.build_path)
     self.m.path.mock_add_paths(repo_in_android_path)
 
   def repo_sync_steps(self):
     # repo_init_steps must have been invoked first.
     sync_flags = self.c.repo.sync_flags.as_jsonish()
     if self.c.sync_manifest_override:
       sync_flags.extend(['-m', self.c.sync_manifest_override])
 
@@ skipping 97 matching lines @@
                       cwd=self.m.path['slave_build'],
                       env=env)
 
   def update_defaut_props_step(self, extra_properties):
     update_default_props_command = (
         [self.resource('update_default_props.py')] +
         ['%s=%s' % (k,v) for k,v in extra_properties.iteritems()])
     self.m.step('update /root/default.prop',
                        self.with_lunch_command + update_default_props_command)