Fold {Audio|Video}Decoder::Stop() into the dtor.

media/filters/opus_audio_decoder.cc

 // Copyright (c) 2012 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.
 
 #include "media/filters/opus_audio_decoder.h"
 
 #include <cmath>
 
 #include "base/single_thread_task_runner.h"
 #include "base/sys_byteorder.h"
@@ skipping 264 matching lines @@
 }
 
 void OpusAudioDecoder::Reset(const base::Closure& closure) {
   DCHECK(task_runner_->BelongsToCurrentThread());
 
   opus_multistream_decoder_ctl(opus_decoder_, OPUS_RESET_STATE);
   ResetTimestampState();
   task_runner_->PostTask(FROM_HERE, closure);
 }
 
-void OpusAudioDecoder::Stop() {
+OpusAudioDecoder::~OpusAudioDecoder() {
   DCHECK(task_runner_->BelongsToCurrentThread());
 
   if (!opus_decoder_)
     return;
 
   opus_multistream_decoder_ctl(opus_decoder_, OPUS_RESET_STATE);
   ResetTimestampState();
   CloseDecoder();
 }
 
-OpusAudioDecoder::~OpusAudioDecoder() {
-  DCHECK(!opus_decoder_);
-}
-
 void OpusAudioDecoder::DecodeBuffer(
     const scoped_refptr<DecoderBuffer>& input,
     const DecodeCB& decode_cb) {
   DCHECK(task_runner_->BelongsToCurrentThread());
   DCHECK(!decode_cb.is_null());
   DCHECK(input);
 
   // Libopus does not buffer output. Decoding is complete when an end of stream
   // input buffer is received.
   if (input->end_of_stream()) {
@@ skipping 168 matching lines @@
     output_buffer->get()->TrimEnd(trim_frames);
 
   // Handles discards and timestamping.  Discard the buffer if more data needed.
   if (!discard_helper_->ProcessBuffers(input, *output_buffer))
     *output_buffer = NULL;
 
   return true;
 }
 
 }  // namespace media