Remove old methods in AudioTransport, make it pass a gn build

webrtc/modules/audio_device/include/audio_device_defines.h

Index: webrtc/modules/audio_device/include/audio_device_defines.h
diff --git a/webrtc/modules/audio_device/include/audio_device_defines.h b/webrtc/modules/audio_device/include/audio_device_defines.h
index b847729f05a6fa543ddaf3bd8056e9af909200d6..ccc263c57b0a6e7ad6ae44a45592cd4cfc4f9994 100644
--- a/webrtc/modules/audio_device/include/audio_device_defines.h
+++ b/webrtc/modules/audio_device/include/audio_device_defines.h
@@ -66,58 +66,16 @@ class AudioTransport {
                                    int64_t* elapsed_time_ms,
                                    int64_t* ntp_time_ms) = 0;
 
-  // Method to pass captured data directly and unmixed to network channels.
-  // |channel_ids| contains a list of VoE channels which are the
-  // sinks to the capture data. |audio_delay_milliseconds| is the sum of
-  // recording delay and playout delay of the hardware. |current_volume| is
-  // in the range of [0, 255], representing the current microphone analog
-  // volume. |key_pressed| is used by the typing detection.
-  // |need_audio_processing| specify if the data needs to be processed by APM.
-  // Currently WebRtc supports only one APM, and Chrome will make sure only
-  // one stream goes through APM. When |need_audio_processing| is false, the
-  // values of |audio_delay_milliseconds|, |current_volume| and |key_pressed|
-  // will be ignored.
-  // The return value is the new microphone volume, in the range of |0, 255].
-  // When the volume does not need to be updated, it returns 0.
-  // TODO(xians): Remove this interface after Chrome and Libjingle switches
-  // to OnData().
-  virtual int OnDataAvailable(const int voe_channels[],
-                              size_t number_of_voe_channels,
-                              const int16_t* audio_data,
-                              int sample_rate,
-                              size_t number_of_channels,
-                              size_t number_of_frames,
-                              int audio_delay_milliseconds,
-                              int current_volume,
-                              bool key_pressed,
-                              bool need_audio_processing) {
-    return 0;
-  }
-
-  // Method to pass the captured audio data to the specific VoE channel.
-  // |voe_channel| is the id of the VoE channel which is the sink to the
-  // capture data.
-  // TODO(xians): Remove this interface after Libjingle switches to
-  // PushCaptureData().
-  virtual void OnData(int voe_channel,
-                      const void* audio_data,
-                      int bits_per_sample,
-                      int sample_rate,
-                      size_t number_of_channels,
-                      size_t number_of_frames) {}
-
   // Method to push the captured audio data to the specific VoE channel.
   // The data will not undergo audio processing.
   // |voe_channel| is the id of the VoE channel which is the sink to the
   // capture data.
-  // TODO(xians): Make the interface pure virtual after Libjingle
-  // has its implementation.
   virtual void PushCaptureData(int voe_channel,
                                const void* audio_data,
                                int bits_per_sample,
                                int sample_rate,
                                size_t number_of_channels,
-                               size_t number_of_frames) {}
+                               size_t number_of_frames) = 0;
 
   // Method to pull mixed render audio data from all active VoE channels.
   // The data will not be passed as reference for audio processing internally.
@@ -129,7 +87,7 @@ class AudioTransport {
                               size_t number_of_frames,
                               void* audio_data,
                               int64_t* elapsed_time_ms,
-                              int64_t* ntp_time_ms) {}
+                              int64_t* ntp_time_ms) = 0;
 
  protected:
   virtual ~AudioTransport() {}