Revert of Refactoring: Merge VideoSenderConfig and AudioSenderConfig.

media/cast/test/simulator.cc

Index: media/cast/test/simulator.cc
diff --git a/media/cast/test/simulator.cc b/media/cast/test/simulator.cc
index 160eae65dcd6e812e267becd099e4cc581f6d6bd..0e2f1ea6ddf3d9c17f5a839485bea37905af63ea 100644
--- a/media/cast/test/simulator.cc
+++ b/media/cast/test/simulator.cc
@@ -356,7 +356,7 @@
   sender_env->logger()->Subscribe(&video_event_subscriber);
 
   // Audio sender config.
-  FrameSenderConfig audio_sender_config = GetDefaultAudioSenderConfig();
+  AudioSenderConfig audio_sender_config = GetDefaultAudioSenderConfig();
   audio_sender_config.min_playout_delay =
       audio_sender_config.max_playout_delay = base::TimeDelta::FromMilliseconds(
           GetIntegerSwitchValue(kTargetDelay, 400));
@@ -368,7 +368,7 @@
       audio_sender_config.max_playout_delay.InMilliseconds();
 
   // Video sender config.
-  FrameSenderConfig video_sender_config = GetDefaultVideoSenderConfig();
+  VideoSenderConfig video_sender_config = GetDefaultVideoSenderConfig();
   video_sender_config.max_bitrate = 2500000;
   video_sender_config.min_bitrate = 2000000;
   video_sender_config.start_bitrate = 2000000;