Revert of Cast: Fix two video freezing problems

media/cast/transport/transport_audio_sender.cc

Index: media/cast/transport/transport_audio_sender.cc
diff --git a/media/cast/transport/transport_audio_sender.cc b/media/cast/transport/transport_audio_sender.cc
index 36351379790d1b864660abcb6195b413c66e264f..b704e23b80a67d68fdc56bb07b717d7e5fa2e4d9 100644
--- a/media/cast/transport/transport_audio_sender.cc
+++ b/media/cast/transport/transport_audio_sender.cc
@@ -20,9 +20,9 @@
     PacedSender* const paced_packet_sender)
     : rtp_sender_(clock, transport_task_runner, paced_packet_sender),
       encryptor_() {
-  initialized_ = rtp_sender_.InitializeAudio(config) &&
-      encryptor_.Initialize(config.rtp.config.aes_key,
-                            config.rtp.config.aes_iv_mask);
+  rtp_sender_.InitializeAudio(config);
+  initialized_ =
+      encryptor_.Initialize(config.base.aes_key, config.base.aes_iv_mask);
 }
 
 TransportAudioSender::~TransportAudioSender() {}
@@ -30,9 +30,6 @@
 void TransportAudioSender::InsertCodedAudioFrame(
     const EncodedAudioFrame* audio_frame,
     const base::TimeTicks& recorded_time) {
-  if (!initialized_) {
-    return;
-  }
   if (encryptor_.initialized()) {
     EncodedAudioFrame encrypted_frame;
     if (!EncryptAudioFrame(*audio_frame, &encrypted_frame)) {
@@ -47,9 +44,6 @@
 bool TransportAudioSender::EncryptAudioFrame(
     const EncodedAudioFrame& audio_frame,
     EncodedAudioFrame* encrypted_frame) {
-  if (!initialized_) {
-    return false;
-  }
   if (!encryptor_.Encrypt(
           audio_frame.frame_id, audio_frame.data, &encrypted_frame->data))
     return false;
@@ -62,9 +56,6 @@
 
 void TransportAudioSender::ResendPackets(
     const MissingFramesAndPacketsMap& missing_frames_and_packets) {
-  if (!initialized_) {
-    return;
-  }
   rtp_sender_.ResendPackets(missing_frames_and_packets);
 }