DevTools: allow inspector protocol generator reuse as a gyp target.

third_party/WebKit/Source/platform/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
 try:
     import json
 except ImportError:
@@ skipping 13 matching lines @@
 # In Blink, jinja2 is in chromium's third_party directory.
 # Insert at 1 so at front to override system libraries, and
 # after path[0] == invoking script dir
 third_party_dir = os.path.normpath(os.path.join(
     module_path, os.pardir, os.pardir, os.pardir, os.pardir))
 if os.path.isdir(third_party_dir):
     sys.path.insert(1, third_party_dir)
 
 # In Node, it is in deps folder
 deps_dir = os.path.normpath(os.path.join(
-    module_path, os.pardir, os.pardir, os.pardir))
+    module_path, os.pardir, os.pardir, "deps"))
 if os.path.isdir(deps_dir):
     sys.path.insert(1, os.path.join(deps_dir, "jinja2"))
     sys.path.insert(1, os.path.join(deps_dir, "markupsafe"))
 
 import jinja2
 
 cmdline_parser = optparse.OptionParser()
 cmdline_parser.add_option("--protocol")
 cmdline_parser.add_option("--include")
 cmdline_parser.add_option("--string_type")
@@ skipping 301 matching lines @@
     cpp_file = output_file(cpp_file_name)
     h_file.write(h_template.render(template_context))
     cpp_file.write(cpp_template.render(template_context))
     h_file.close()
     cpp_file.close()
 
 
 for domain in json_api["domains"]:
     if domain["domain"] in generate_domains:
         generate(domain)