Fix/Add content_unittests to work for the code behind --enable-audio-track-processing

content/renderer/media/media_stream_audio_processor.h

 // Copyright 2013 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.
 
 #ifndef CONTENT_RENDERER_MEDIA_MEDIA_STREAM_AUDIO_PROCESSOR_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_AUDIO_PROCESSOR_H_
 
 #include "base/atomicops.h"
 #include "base/platform_file.h"
 #include "base/synchronization/lock.h"
@@ skipping 67 matching lines @@
   // otherwise false.
   // |capture_delay|, |volume| and |key_pressed| will be passed to
   // webrtc::AudioProcessing to help processing the data.
   // Called on the capture audio thread.
   bool ProcessAndConsumeData(base::TimeDelta capture_delay,
                              int volume,
                              bool key_pressed,
                              int* new_volume,
                              int16** out);
 
+  bool IsAudioTrackProcessingEnabled() const;
+
   // The audio format of the input to the processor.
   const media::AudioParameters& InputFormat() const;
 
   // The audio format of the output from the processor.
   const media::AudioParameters& OutputFormat() const;
 
   // Accessor to check if the audio processing is enabled or not.
   bool has_audio_processing() const { return audio_processing_ != NULL; }
 
   // Starts/Stops the Aec dump on the |audio_processing_|.
@@ skipping 90 matching lines @@
 
   // This flag is used to show the result of typing detection.
   // It can be accessed by the capture audio thread and by the libjingle thread
   // which calls GetStats().
   base::subtle::Atomic32 typing_detected_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_AUDIO_PROCESSOR_H_