DevTools: add correct include dirs to protocol handler generator for V8.

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:
     import simplejson as json
 
 # Path handling for libraries and templates
 # Paths have to be normalized because Jinja uses the exact template path to
 # determine the hash used in the cache filename, and we need a pre-caching step
 # to be concurrency-safe. Use absolute path because __file__ is absolute if
 # module is imported, and relative if executed directly.
 # If paths differ between pre-caching and individual file compilation, the cache
 # is regenerated, which causes a race condition and breaks concurrent build,
 # since some compile processes will try to read the partially written cache.
 module_path, module_filename = os.path.split(os.path.realpath(__file__))
 templates_dir = module_path
 
 # 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(
+blink_third_party_dir = os.path.normpath(os.path.join(
     module_path, os.pardir, os.pardir, os.pardir, os.pardir, os.pardir,
     "third_party"))
-if os.path.isdir(third_party_dir):
-    sys.path.insert(1, third_party_dir)
+if os.path.isdir(blink_third_party_dir):
+    sys.path.insert(1, blink_third_party_dir)
+
+# In V8, it is in third_party folder
+v8_third_party_dir = os.path.normpath(os.path.join(
+    module_path, os.pardir, os.pardir, "third_party"))
+
+if os.path.isdir(v8_third_party_dir):
+    sys.path.insert(1, v8_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, os.pardir, "third_party"))
 
 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
@@ skipping 306 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)