Support the Aec dump for the APM in chrome

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"
 #include "base/threading/thread_checker.h"
 #include "base/time/time.h"
 #include "content/common/content_export.h"
 #include "content/renderer/media/webrtc_audio_device_impl.h"
 #include "media/base/audio_converter.h"
 #include "third_party/webrtc/modules/audio_processing/include/audio_processing.h"
 #include "third_party/webrtc/modules/interface/module_common_types.h"
 
 namespace blink {
@@ skipping 47 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);
 
-
   // 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_|.
+  // Called on the main render thread.

[Henrik Grunell, 2014/03/06 10:12:20]

Comment that it takes ownership of |aec_dump_file|.

[no longer working on chromium, 2014/03/06 18:57:21]

Done.

+  void StartAecDump(const base::PlatformFile& aec_dump_file);
+  void StopAecDump();
+
  protected:
   friend class base::RefCountedThreadSafe<MediaStreamAudioProcessor>;
   virtual ~MediaStreamAudioProcessor();
 
  private:
   friend class MediaStreamAudioProcessorTest;
 
   class MediaStreamAudioConverter;
 
   // WebRtcPlayoutDataSource::Sink implementation.
@@ skipping 67 matching lines @@
   // Used by the typing detection.
   scoped_ptr<webrtc::TypingDetection> typing_detector_;
 
   // Result from the typing detection.
   bool typing_detected_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_AUDIO_PROCESSOR_H_