build: roll infra_paths changes

scripts/slave/recipe_modules/file/example.py

Index: scripts/slave/recipe_modules/file/example.py
diff --git a/scripts/slave/recipe_modules/file/example.py b/scripts/slave/recipe_modules/file/example.py
index 3ed01050a71a5ff6044d4406a962a437af127ad6..0d117d49854723fe5a072ec1a6531c9a3d1e1698 100644
--- a/scripts/slave/recipe_modules/file/example.py
+++ b/scripts/slave/recipe_modules/file/example.py
@@ -5,6 +5,7 @@
 from recipe_engine.types import freeze
 
 DEPS = [
+  'depot_tools/infra_paths',
   'file',
   'recipe_engine/path',
   'recipe_engine/raw_io',
@@ -38,7 +39,7 @@ def RunSteps(api):
     api.step('print %s' % prefix, ['echo', temp_dir])
 
   # rmwildcard demo
-  api.file.rmwildcard('*.o', api.path['slave_build'])
+  api.file.rmwildcard('*.o', api.infra_paths['slave_build'])
 
   for name, content in TEST_CONTENTS.iteritems():
     api.file.write('write_%s' % name, 'tmp_file.txt', content)
@@ -52,11 +53,11 @@ def RunSteps(api):
   try:
     # copytree
     content = 'some file content'
-    tmp_dir = api.path['slave_build'].join('copytree_example_tmp')
+    tmp_dir = api.infra_paths['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.path['slave_build'].join('copytree_example_tmp2')
+    new_tmp = api.infra_paths['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,