Revert of Pass time constant to bwe smoothing filter.

webrtc/voice_engine/channel_proxy.cc

 /*
  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 130 matching lines @@
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
   return channel()->SetSendTelephoneEventPayloadType(payload_type,
                                                      payload_frequency) == 0;
 }
 
 bool ChannelProxy::SendTelephoneEventOutband(int event, int duration_ms) {
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
   return channel()->SendTelephoneEventOutband(event, duration_ms) == 0;
 }
 
-void ChannelProxy::SetBitrate(int bitrate_bps, int64_t probing_interval_ms) {
+void ChannelProxy::SetBitrate(int bitrate_bps) {
   // May be called on different threads and needs to be handled by the channel.
-  channel()->SetBitRate(bitrate_bps, probing_interval_ms);
+  channel()->SetBitRate(bitrate_bps);
 }
 
 void ChannelProxy::SetSink(std::unique_ptr<AudioSinkInterface> sink) {
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
   channel()->SetSink(std::move(sink));
 }
 
 void ChannelProxy::SetInputMute(bool muted) {
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
   int error = channel()->SetInputMute(muted);
@@ skipping 85 matching lines @@
   channel()->set_associate_send_channel(ChannelOwner(nullptr));
 }
 
 Channel* ChannelProxy::channel() const {
   RTC_DCHECK(channel_owner_.channel());
   return channel_owner_.channel();
 }
 
 }  // namespace voe
 }  // namespace webrtc