Add chrome/renderer to the GN build.

media/cast/cast.gyp

 # Copyright 2013 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': {
     'include_tests%': 1,
     'chromium_code': 1,
   },
   'conditions': [
@@ skipping 48 matching lines @@
         'logging/stats_event_subscriber.h',
         'rtp_timestamp_helper.cc',
         'rtp_timestamp_helper.h',
         'transport/cast_transport_config.cc',
         'transport/cast_transport_config.h',
         'transport/cast_transport_defines.h',
         'transport/cast_transport_sender.h',
       ], # source
     },
     {
+      # GN version: //media/cast/logging/proto
       'target_name': 'cast_logging_proto',
       'type': 'static_library',
       'include_dirs': [
         '<(DEPTH)/',
       ],
       'sources': [
         'logging/proto/proto_utils.cc',
         'logging/proto/raw_events.proto',
       ],
       'variables': {
@@ skipping 137 matching lines @@
         'transport/rtp_sender/rtp_sender.cc',
         'transport/rtp_sender/rtp_sender.h',
         'transport/transport/udp_transport.cc',
         'transport/transport/udp_transport.h',
         'transport/utility/transport_encryption_handler.cc',
         'transport/utility/transport_encryption_handler.h',
       ], # source
     },
   ],
 }