VideoToolbox encoder for cast senders.

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 172 matching lines @@
           ],
           'sources!': [
             'sender/external_video_encoder.h',
             'sender/external_video_encoder.cc',
             'sender/video_encoder_impl.h',
             'sender/video_encoder_impl.cc',
             'sender/vp8_encoder.cc',
             'sender/vp8_encoder.h',
           ],
         }], # OS=="ios"
+        # iOS and OS X encoders
+        ['OS=="ios" or OS=="mac"', {
+          'sources': [
+            'sender/h264_vt_encoder.cc',
+            'sender/h264_vt_encoder.h',
+          ],
+        }],  # OS=="ios" or OS=="mac"
       ], # conditions
     },
     {
       # GN version: //media/cast:net
       'target_name': 'cast_net',
       'type': 'static_library',
       'include_dirs': [
         '<(DEPTH)/',
       ],
       'dependencies': [
@@ skipping 24 matching lines @@
         'net/rtp/rtp_packetizer.cc',
         'net/rtp/rtp_packetizer.h',
         'net/rtp/rtp_sender.cc',
         'net/rtp/rtp_sender.h',
         'net/udp_transport.cc',
         'net/udp_transport.h',
       ], # source
     },
   ],
 }