Moved the AECM render sample queue into the audio processing module

webrtc/modules/audio_processing/echo_control_mobile_impl.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 13 matching lines @@
 
 class AudioBuffer;
 
 class EchoControlMobileImpl : public EchoControlMobile {
  public:
   EchoControlMobileImpl(rtc::CriticalSection* crit_render,
                         rtc::CriticalSection* crit_capture);
 
   ~EchoControlMobileImpl() override;
 
-  int ProcessRenderAudio(const AudioBuffer* audio);
+  void ProcessRenderAudio(rtc::ArrayView<const int16_t> packed_render_audio);
   int ProcessCaptureAudio(AudioBuffer* audio, int stream_delay_ms);
 
   // EchoControlMobile implementation.
   bool is_enabled() const override;
   RoutingMode routing_mode() const override;
   bool is_comfort_noise_enabled() const override;
 
   void Initialize(int sample_rate_hz,
                   size_t num_reverse_channels,
                   size_t num_output_channels);
 
-  // Reads render side data that has been queued on the render call.
-  void ReadQueuedRenderData();
+  static void PackRenderAudioBuffer(const AudioBuffer* audio,
+                                    size_t num_output_channels,
+                                    size_t num_channels,
+                                    std::vector<int16_t>* packed_buffer);
+
+  static size_t NumCancellersRequired(size_t num_output_channels,
+                                      size_t num_reverse_channels);
 
  private:
   class Canceller;
   struct StreamProperties;
 
   // EchoControlMobile implementation.
   int Enable(bool enable) override;
   int set_routing_mode(RoutingMode mode) override;
   int enable_comfort_noise(bool enable) override;
   int SetEchoPath(const void* echo_path, size_t size_bytes) override;
   int GetEchoPath(void* echo_path, size_t size_bytes) const override;
 
-  size_t num_handles_required() const;
-
-  void AllocateRenderQueue();
   int Configure();
 
   rtc::CriticalSection* const crit_render_ ACQUIRED_BEFORE(crit_capture_);
   rtc::CriticalSection* const crit_capture_;
 
   bool enabled_ = false;
 
   RoutingMode routing_mode_ GUARDED_BY(crit_capture_);
   bool comfort_noise_enabled_ GUARDED_BY(crit_capture_);
   unsigned char* external_echo_path_ GUARDED_BY(crit_render_)
       GUARDED_BY(crit_capture_);
 
-  size_t render_queue_element_max_size_ GUARDED_BY(crit_render_)
-      GUARDED_BY(crit_capture_);
-
-  std::vector<int16_t> render_queue_buffer_ GUARDED_BY(crit_render_);
-  std::vector<int16_t> capture_queue_buffer_ GUARDED_BY(crit_capture_);
-
-  // Lock protection not needed.
-  std::unique_ptr<
-      SwapQueue<std::vector<int16_t>, RenderQueueItemVerifier<int16_t>>>
-      render_signal_queue_;
-
   std::vector<std::unique_ptr<Canceller>> cancellers_;
   std::unique_ptr<StreamProperties> stream_properties_;
 
   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(EchoControlMobileImpl);
 };
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_ECHO_CONTROL_MOBILE_IMPL_H_