[DevTools] migrate InspectorLayerTreeAgent to new style

third_party/inspector_protocol/CodeGenerator.py

 # Copyright 2016 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 os.path
 import sys
 import optparse
 import collections
 import functools
 try:
@@ skipping 312 matching lines @@
 
 def resolve_type(protocol, prop):
     if "$ref" in prop:
         return protocol.type_definitions[prop["$ref"]]
     if prop["type"] == "array":
         return wrap_array_definition(resolve_type(protocol, prop["items"]))
     return protocol.type_definitions[prop["type"]]
 
 
 def new_style(domain):
-    domains = ["DOMStorage", "Rendering", "Emulation", "Network", "Memory", "Page" ]
+    domains = ["DOMStorage", "Rendering", "Emulation", "Network", "Memory", "Page", "LayerTree" ]
     return domain["domain"] in domains
 
 
 def join_arrays(dict, keys):
     result = []
     for key in keys:
         if key in dict:
             result += dict[key]
     return result
 
@@ skipping 151 matching lines @@
     if up_to_date:
         sys.exit()
 
     for file_name, content in outputs.iteritems():
         out_file = open(file_name, "w")
         out_file.write(content)
         out_file.close()
 
 
 main()