Convert make_qualified_names and make_element_factory to use JSON5.

third_party/WebKit/Source/build/scripts/scripts.gni

 # 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("//build/toolchain/toolchain.gni")
 import("//third_party/WebKit/Source/config.gni")
 
 # All paths in this file should be absolute so targets in any directory can use
 # them without worrying about the current directory.
 _scripts_dir = "//third_party/WebKit/Source/build/scripts"
 
 scripts_for_in_files = [
   # jinja2/__init__.py contains version string, so sufficient as
   # dependency for whole jinja2 package
   "//third_party/jinja2/__init__.py",
   "//third_party/markupsafe/__init__.py",  # jinja2 dep
   "$_scripts_dir/hasher.py",
-  "$_scripts_dir/in_file.py",
-  "$_scripts_dir/in_generator.py",
+  "$_scripts_dir/json5_generator.py",
   "$_scripts_dir/license.py",
   "$_scripts_dir/name_utilities.py",
   "$_scripts_dir/template_expander.py",
   "$_scripts_dir/templates/macros.tmpl",
 ]
 
 css_properties_files =
     scripts_for_in_files + [ "$_scripts_dir/css_properties.py" ]
 
 make_event_factory_files = scripts_for_in_files + [
@@ skipping 165 matching lines @@
     other_inputs = make_event_factory_files
     forward_variables_from(invoker,
                            [
                              "deps",
                              "in_files",
                              "outputs",
                              "visibility",
                            ])
   }
 }