Revert of [Cast] Compute utilization metrics and add performance overlay.

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 144 matching lines @@
         'sender/audio_sender.cc',
         'sender/audio_sender.h',
         'sender/congestion_control.cc',
         'sender/congestion_control.h',
         'sender/external_video_encoder.cc',
         'sender/external_video_encoder.h',
         'sender/fake_software_video_encoder.cc',
         'sender/fake_software_video_encoder.h',
         'sender/frame_sender.cc',
         'sender/frame_sender.h',
-        'sender/performance_metrics_overlay.cc',
-        'sender/performance_metrics_overlay.h',
-        'sender/sender_encoded_frame.cc',
-        'sender/sender_encoded_frame.h',
         'sender/size_adaptable_video_encoder_base.cc',
         'sender/size_adaptable_video_encoder_base.h',
         'sender/software_video_encoder.h',
         'sender/video_encoder.cc',
         'sender/video_encoder.h',
         'sender/video_encoder_impl.cc',
         'sender/video_encoder_impl.h',
         'sender/video_frame_factory.h',
         'sender/video_sender.cc',
         'sender/video_sender.h',
@@ skipping 76 matching lines @@
         'net/rtp/rtp_parser.cc',
         'net/rtp/rtp_parser.h',
         'net/rtp/rtp_sender.cc',
         'net/rtp/rtp_sender.h',
         'net/udp_transport.cc',
         'net/udp_transport.h',
       ], # source
     },
   ],
 }