Update Chromoting to use /third_party/closure_compiler.

remoting/remoting_webapp.gypi

 # 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.
 #
 # File included in remoting_webapp_* targets in remoting_client.gypi
 
 {
   'type': 'none',
   'variables': {
     'extra_files%': [],
@@ skipping 16 matching lines @@
         {
           'action_name': 'Verify remoting webapp',
           'inputs': [
             '<@(remoting_webapp_crd_js_files)',
             '<@(remoting_webapp_js_proto_files)',
           ],
           'outputs': [
             '<(success_stamp)',
           ],
           'action': [
-            'python', 'tools/jscompile.py',
+            'python', '../third_party/closure_compiler/checker.py',
+            '--strict',
+            '--no-single-file',
+            '--success-stamp', '<(success_stamp)',
             '<@(remoting_webapp_crd_js_files)',
             '<@(remoting_webapp_js_proto_files)',
-            '--success-stamp', '<(success_stamp)'
           ],
         },
       ],  # actions
     }],
   ],
   'actions': [
     {
       'action_name': 'Build Remoting WebApp',
       'inputs': [
         'webapp/build-webapp.py',
@@ skipping 18 matching lines @@
         'webapp/crd/manifest.json.jinja2',
         '<(webapp_type)',
         '<@(generated_html_files)',
         '<@(remoting_webapp_crd_files)',
         '<@(extra_files)',
         '--locales', '<@(remoting_webapp_locale_files)',
       ],
     },
   ],
 }