DevTools: fix presubmit hooks for windows

third_party/WebKit/Source/devtools/BUILD.gn

 # 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/config/features.gni")
 import("//third_party/WebKit/public/public_features.gni")
 import("//third_party/WebKit/Source/core/core.gni")
 
 devtools_embedder_scripts = [
   "front_end/devtools_compatibility.js",
@@ skipping 1157 matching lines @@
 }
 
 group("devtools_closure_compile") {
   data = [
     # Needed for isolate script to execute.
     "front_end/",
     "scripts/build/",
     "scripts/closure/",
     "scripts/compile_frontend.py",
     "scripts/jsdoc_validator/",
+    "scripts/utils.py",
     "//testing/scripts/run_devtools_closure_compile.py",
     "//testing/scripts/common.py",
     "//testing/xvfb.py",
     "//third_party/WebKit/Source/core/inspector/browser_protocol.json",
     "//v8/src/inspector/js_protocol.json",
   ]
 }