[Chromoting] Add GN build support for ar_sample_app target.

remoting/remoting_client.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.
 
 {
   'targets': [
     {
       # GN version: //remoting/client/plugin
       'target_name': 'remoting_client_plugin',
       'type': 'static_library',
@@ skipping 31 matching lines @@
         'remoting_protocol',
         '../third_party/libyuv/libyuv.gyp:libyuv',
         '../third_party/webrtc/modules/modules.gyp:desktop_capture',
       ],
       'sources': [
         '<@(remoting_client_sources)',
       ],
     },  # end of target 'remoting_client'
 
     {
-      # GN version: //remoting/webapp:html
+      # GN version: See remoting/webapp/build_template.gni
       'target_name': 'remoting_webapp_html',
       'type': 'none',
       'actions': [
         {
-          # GN version: //remoting/webapp:main_html
           'action_name': 'Build Remoting Webapp main.html',
           'inputs': [
             'webapp/build-html.py',
             '<(remoting_webapp_template_main)',
             '<@(remoting_webapp_template_files)',
           ],
           'outputs': [
             '<(SHARED_INTERMEDIATE_DIR)/remoting/main.html',
           ],
           'action': [
             'python', 'webapp/build-html.py',
             '<(SHARED_INTERMEDIATE_DIR)/remoting/main.html',
             '<(remoting_webapp_template_main)',
             '--template-dir', '<(DEPTH)/remoting',
             '--templates', '<@(remoting_webapp_template_files)',
             '--js',
             '<@(remoting_webapp_crd_main_html_all_js_files)',
           ],
         },
         {
-          # GN version: //remoting/webapp:wcs_sandbox_html
           'action_name': 'Build Remoting Webapp wcs_sandbox.html',
           'inputs': [
             'webapp/build-html.py',
             '<(remoting_webapp_template_wcs_sandbox)',
           ],
           'outputs': [
             '<(SHARED_INTERMEDIATE_DIR)/remoting/wcs_sandbox.html',
           ],
           'action': [
             'python', 'webapp/build-html.py',
             '<(SHARED_INTERMEDIATE_DIR)/remoting/wcs_sandbox.html',
             '<(remoting_webapp_template_wcs_sandbox)',
             '--js', '<@(remoting_webapp_wcs_sandbox_html_all_js_files)',
           ],
         },
         {
-          # GN version: //remoting/webapp:background_html
           'action_name': 'Build Remoting Webapp background.html',
           'inputs': [
             'webapp/build-html.py',
             '<(remoting_webapp_template_background)',
           ],
           'outputs': [
             '<(SHARED_INTERMEDIATE_DIR)/remoting/background.html',
           ],
           'action': [
             'python', 'webapp/build-html.py',
@@ skipping 15 matching lines @@
             'python', 'webapp/build-html.py',
             '<(SHARED_INTERMEDIATE_DIR)/remoting/message_window.html',
             '<(remoting_webapp_template_message_window)',
             '--js', '<@(remoting_webapp_message_window_html_all_js_files)',
           ],
         },
       ],  # end of actions
     },  # end of target 'remoting_webapp_html'
 
     {
+      # GN version: //remoting/webapp:webapp
       'target_name': 'remoting_webapp',
       'type': 'none',
       'dependencies': [
         'remoting_webapp_v1',
       ],
       'conditions': [
         ['disable_nacl==0 and disable_nacl_untrusted==0', {
           'dependencies': [
             'remoting_webapp_v2',
           ],
         }]
       ],
     },  # end of target 'remoting_webapp'
 
     {
+      # GN version: //remoting/webapp:webapp_v1
       'target_name': 'remoting_webapp_v1',
       'type': 'none',
       'variables': {
         'webapp_type': 'v1',
         'output_dir': '<(PRODUCT_DIR)/remoting/remoting.webapp',
         'zip_path': '<(PRODUCT_DIR)/remoting-webapp.zip',
       },
       'includes': [ 'remoting_webapp.gypi', ],
     },  # end of target 'remoting_webapp_v1'
   ],  # end of targets
 
   'conditions': [
     ['disable_nacl==0 and disable_nacl_untrusted==0', {
       'targets': [
         {
+          # GN version: //remoting/webapp:webapp_v1
           'target_name': 'remoting_webapp_v2',
           'type': 'none',
           'variables': {
             'output_dir': '<(PRODUCT_DIR)/remoting/remoting.webapp.v2',
             'zip_path': '<(PRODUCT_DIR)/remoting-webapp.v2.zip',
             'webapp_type': 'v2_pnacl',
             'extra_files': [
               'webapp/crd/remoting_client_pnacl.nmf.jinja2',
               '<(PRODUCT_DIR)/remoting_client_plugin_newlib.pexe',
             ],
           },
           'dependencies': [
             'remoting_nacl.gyp:remoting_client_plugin_nacl',
           ],
           'conditions': [
             ['buildtype == "Dev"', {
               'variables': {
                 'extra_files': [
                   '<(PRODUCT_DIR)/remoting_client_plugin_newlib.pexe.debug',
                 ],
               },
             }],
           ],
           'includes': [ 'remoting_webapp.gypi', ],
         },  # end of target 'remoting_webapp_v2'
       ],
     }],
   ],
 }