depot_tools: adjust for resource API changes in recipe engine

recipe_modules/gclient/api.py

Index: recipe_modules/gclient/api.py
diff --git a/recipe_modules/gclient/api.py b/recipe_modules/gclient/api.py
index 98100c2058877b8af3f049399dd605455b8c2c8f..558e9d9c5e68ca10e91ff643162da8dcdb6b2bb2 100644
--- a/recipe_modules/gclient/api.py
+++ b/recipe_modules/gclient/api.py
@@ -93,10 +93,10 @@ class GclientApi(recipe_api.RecipeApi):
     kwargs.setdefault('env', {})
     kwargs['env'].setdefault('PATH', '%(PATH)s')
     kwargs['env']['PATH'] = self.m.path.pathsep.join([
-        kwargs['env']['PATH'], str(self._module.PACKAGE_DIRECTORY)])
+        kwargs['env']['PATH'], str(self._module.PACKAGE_REPO_ROOT)])
 
     return self.m.python(prefix + name,
-                         self.package_resource('gclient.py'),
+                         self.package_repo_resource('gclient.py'),
                          cmd,
                          infra_step=infra_step,
                          **kwargs)