[Chromoting] Fix os detection logic in logs.

remoting/remoting_webapp_files.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.
 
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@@ skipping 71 matching lines @@
       'webapp/base/js/base_event_hook_unittest.js',
       'webapp/base/js/base_inherits_unittest.js',
       'webapp/base/js/client_session_unittest.js',
       'webapp/base/js/client_session_factory_unittest.js',
       'webapp/base/js/dns_blackhole_checker_unittest.js',
       'webapp/base/js/error_unittest.js',
       'webapp/base/js/fallback_signal_strategy_unittest.js',
       'webapp/base/js/identity_unittest.js',
       'webapp/base/js/ipc_unittest.js',
       'webapp/base/js/l10n_unittest.js',
+      'webapp/base/js/platform_unittest.js',
       'webapp/base/js/protocol_extension_manager_unittest.js',
       'webapp/base/js/typecheck_unittest.js',
       'webapp/base/js/viewport_unittest.js',
       'webapp/base/js/window_shape_unittest.js',
       'webapp/base/js/xhr_unittest.js',
       'webapp/base/js/xmpp_connection_unittest.js',
       'webapp/base/js/xmpp_login_handler_unittest.js',
       'webapp/base/js/xmpp_stream_parser_unittest.js',
       'webapp/crd/js/apps_v2_migration_unittest.js',
       'webapp/crd/js/gcd_client_unittest.js',
@@ skipping 408 matching lines @@
       '<(remoting_webapp_template_background)',
       '<(remoting_webapp_template_main)',
       '<(remoting_webapp_template_message_window)',
       '<(remoting_webapp_template_wcs_sandbox)',
       '<@(remoting_webapp_template_files)',
       '<@(remoting_webapp_crd_js_files)',
     ],
 
   },
 }