AcmReceiver: Ask NetEq to delete all decoders at once instead of one by one

webrtc/modules/audio_coding/neteq/include/neteq.h

 /*
  *  Copyright (c) 2012 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 165 matching lines @@
   // may be empty.
   virtual int RegisterExternalDecoder(AudioDecoder* decoder,
                                       NetEqDecoder codec,
                                       const std::string& codec_name,
                                       uint8_t rtp_payload_type) = 0;
 
   // Removes |rtp_payload_type| from the codec database. Returns 0 on success,
   // -1 on failure.
   virtual int RemovePayloadType(uint8_t rtp_payload_type) = 0;
 
+  // Removes all payload types from the codec database.
+  virtual void RemoveAllPayloadTypes() = 0;
+
   // Sets a minimum delay in millisecond for packet buffer. The minimum is
   // maintained unless a higher latency is dictated by channel condition.
   // Returns true if the minimum is successfully applied, otherwise false is
   // returned.
   virtual bool SetMinimumDelay(int delay_ms) = 0;
 
   // Sets a maximum delay in milliseconds for packet buffer. The latency will
   // not exceed the given value, even required delay (given the channel
   // conditions) is higher. Calling this method has the same effect as setting
   // the |max_delay_ms| value in the NetEq::Config struct.
@@ skipping 94 matching lines @@
 
  protected:
   NetEq() {}
 
  private:
   RTC_DISALLOW_COPY_AND_ASSIGN(NetEq);
 };
 
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_AUDIO_CODING_NETEQ_INCLUDE_NETEQ_H_