Revert "build: roll infra_paths changes"

scripts/slave/recipe_modules/file/example.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.
 
 from recipe_engine.types import freeze
 
 DEPS = [
-  'depot_tools/infra_paths',
   'file',
   'recipe_engine/path',
   'recipe_engine/raw_io',
   'recipe_engine/step',
 ]
 
 
 TEST_CONTENTS = freeze({
   'simple': 'abcde',
   'spaces': 'abcde fgh',
@@ skipping 13 matching lines @@
 
   # mkdtemp demo.
   for prefix in ('prefix_a', 'prefix_b'):
     # Create temp dir.
     temp_dir = api.path.mkdtemp(prefix)
     assert api.path.exists(temp_dir)
     # Make |temp_dir| surface in expectation files.
     api.step('print %s' % prefix, ['echo', temp_dir])
 
   # rmwildcard demo
-  api.file.rmwildcard('*.o', api.infra_paths['slave_build'])
+  api.file.rmwildcard('*.o', api.path['slave_build'])
 
   for name, content in TEST_CONTENTS.iteritems():
     api.file.write('write_%s' % name, 'tmp_file.txt', content)
     actual_content = api.file.read(
         'read_%s' % name, 'tmp_file.txt',
         test_data=content
     )
     msg = 'expected %s but got %s' % (content, actual_content)
     assert actual_content == content, msg
 
   try:
     # copytree
     content = 'some file content'
-    tmp_dir = api.infra_paths['slave_build'].join('copytree_example_tmp')
+    tmp_dir = api.path['slave_build'].join('copytree_example_tmp')
     api.file.makedirs('makedirs', tmp_dir)
     path = tmp_dir.join('dummy_file')
     api.file.write('write %s' % path, path, content)
-    new_tmp = api.infra_paths['slave_build'].join('copytree_example_tmp2')
+    new_tmp = api.path['slave_build'].join('copytree_example_tmp2')
     new_path = new_tmp.join('dummy_file')
     api.file.copytree('copytree', tmp_dir, new_tmp)
     actual_content = api.file.read('read %s' % new_path, new_path,
                                    test_data=content)
     assert actual_content == content
 
     # glob.
     files = api.file.glob(
         'glob', tmp_dir.join('*'),
         test_data=[tmp_dir.join('dummy_file')])
     assert files == [str(tmp_dir.join('dummy_file'))], files
 
   finally:
     api.file.rmtree('cleanup', tmp_dir)
     api.file.rmtree('cleanup2', new_tmp)
 
 
 def GenTests(api):
   yield api.test('file_io')