Remove the IPC to request DemuxerConfigs when config changes

content/common/media/media_player_messages_android.h

Index: content/common/media/media_player_messages_android.h
diff --git a/content/common/media/media_player_messages_android.h b/content/common/media/media_player_messages_android.h
index 40dd56e2c6e9a17ac531769b923757472886c7b0..12fdcf19cfc8973c7adce866dcc460e9837b89c7 100644
--- a/content/common/media/media_player_messages_android.h
+++ b/content/common/media/media_player_messages_android.h
@@ -42,6 +42,7 @@ IPC_STRUCT_TRAITS_END()
 IPC_STRUCT_TRAITS_BEGIN(media::DemuxerData)
   IPC_STRUCT_TRAITS_MEMBER(type)
   IPC_STRUCT_TRAITS_MEMBER(access_units)
+  IPC_STRUCT_TRAITS_MEMBER(demuxer_configs)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(media::AccessUnit)
@@ -175,10 +176,6 @@ IPC_MESSAGE_CONTROL2(MediaPlayerMsg_ReadFromDemuxer,
                      int /* demuxer_client_id */,
                      media::DemuxerStream::Type /* type */)
 
-// The player needs new config data
-IPC_MESSAGE_CONTROL1(MediaPlayerMsg_MediaConfigRequest,
-                     int /* demuxer_client_id */)
-
 // Clank has connected to the remote device.
 IPC_MESSAGE_ROUTED2(MediaPlayerMsg_ConnectedToRemoteDevice,
                     int /* player_id */,