Support the Aec dump for the APM in chrome

content/renderer/media/media_stream_audio_processor.h

Index: content/renderer/media/media_stream_audio_processor.h
diff --git a/content/renderer/media/media_stream_audio_processor.h b/content/renderer/media/media_stream_audio_processor.h
index 46018b28fa615c4dec454ba21cc9161cf244bc47..bd63822837d5348e5a55dae309190e08f5c10451 100644
--- a/content/renderer/media/media_stream_audio_processor.h
+++ b/content/renderer/media/media_stream_audio_processor.h
@@ -6,6 +6,7 @@
 #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"
@@ -73,7 +74,6 @@ class CONTENT_EXPORT MediaStreamAudioProcessor :
                              int* new_volume,
                              int16** out);
 
-
   // The audio format of the input to the processor.
   const media::AudioParameters& InputFormat() const;
 
@@ -83,6 +83,11 @@ class CONTENT_EXPORT MediaStreamAudioProcessor :
   // 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();