Revert of Remove NPAPI plugin from chromoting webapp.

remoting/remoting_host_mac.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.
 
 {
   'variables': {
     'remoting_host_installer_mac_roots': [
       'host/installer/mac/',
       '<(DEPTH)/chrome/installer/mac/',
     ],
@@ skipping 70 matching lines @@
           'type': 'none',
           'dependencies': [
             'remoting_host_prefpane',
             'remoting_host_uninstaller',
             'remoting_me2me_host',
             'remoting_me2me_native_messaging_host',
             'remoting_it2me_native_messaging_host',
             'remoting_native_messaging_manifests',
           ],
           'variables': {
-            'host_name': '<!(python <(version_py_path) -f <(branding_path) -t "@MAC_HOST_PACKAGE_NAME@")',
+            'host_name': '<!(python <(version_py_path) -f <(branding_path) -t "@HOST_PLUGIN_FILE_NAME@")',
             'host_service_name': '<!(python <(version_py_path) -f <(branding_path) -t "@DAEMON_FILE_NAME@")',
             'host_uninstaller_name': '<!(python <(version_py_path) -f <(branding_path) -t "@MAC_UNINSTALLER_NAME@")',
             'bundle_prefix': '<!(python <(version_py_path) -f <(branding_path) -t "@MAC_UNINSTALLER_BUNDLE_PREFIX@")',
             'me2me_host_bundle_name': '<!(python <(version_py_path) -f <(branding_path) -t "@MAC_HOST_BUNDLE_NAME@")',
             'prefpane_bundle_name': '<!(python <(version_py_path) -f <(branding_path) -t "@MAC_PREFPANE_BUNDLE_NAME@")',
             'native_messaging_host_bundle_name': '<!(python <(version_py_path) -f <(branding_path) -t "@MAC_NATIVE_MESSAGING_HOST_BUNDLE_NAME@")',
             'remote_assistance_host_bundle_name': '<!(python <(version_py_path) -f <(branding_path) -t "@MAC_REMOTE_ASSISTANCE_HOST_BUNDLE_NAME@")',
           },
           'actions': [
             {
@@ skipping 150 matching lines @@
                 'mac_real_dsym': 1,
               },
             }],  # 'mac_breakpad==1'
           ],  # conditions
         },  # end of target 'remoting_host_prefpane'
       ],  # end of 'targets'
     }],  # 'OS=="mac"'
 
   ],  # end of 'conditions'
 }