Minor correction of AudioProcessing::set_stream_delay_ms() docstring

webrtc/modules/audio_processing/include/audio_processing.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 411 matching lines @@
   //
   // Sets the |delay| in ms between ProcessReverseStream() receiving a far-end
   // frame and ProcessStream() receiving a near-end frame containing the
   // corresponding echo. On the client-side this can be expressed as
   //   delay = (t_render - t_analyze) + (t_process - t_capture)
   // where,
   //   - t_analyze is the time a frame is passed to ProcessReverseStream() and
   //     t_render is the time the first sample of the same frame is rendered by
   //     the audio hardware.
   //   - t_capture is the time the first sample of a frame is captured by the
-  //     audio hardware and t_pull is the time the same frame is passed to
+  //     audio hardware and t_process is the time the same frame is passed to
   //     ProcessStream().
   virtual int set_stream_delay_ms(int delay) = 0;
   virtual int stream_delay_ms() const = 0;
   virtual bool was_stream_delay_set() const = 0;
 
   // Call to signal that a key press occurred (true) or did not occur (false)
   // with this chunk of audio.
   virtual void set_stream_key_pressed(bool key_pressed) = 0;
 
   // Sets a delay |offset| in ms to add to the values passed in through
@@ skipping 631 matching lines @@
   // This does not impact the size of frames passed to |ProcessStream()|.
   virtual int set_frame_size_ms(int size) = 0;
   virtual int frame_size_ms() const = 0;
 
  protected:
   virtual ~VoiceDetection() {}
 };
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_INCLUDE_AUDIO_PROCESSING_H_