Implementation of new AecDump interface.

webrtc/modules/audio_processing/include/aec_dump.h

Index: webrtc/modules/audio_processing/include/aec_dump.h
diff --git a/webrtc/modules/audio_processing/include/aec_dump.h b/webrtc/modules/audio_processing/include/aec_dump.h
index 3391924dc94ccfe858426974d129869423030743..68d50d0490502ec3da6ccebf99c93cc736ba6d92 100644
--- a/webrtc/modules/audio_processing/include/aec_dump.h
+++ b/webrtc/modules/audio_processing/include/aec_dump.h
@@ -103,8 +103,9 @@ class AecDump {
   // instance is first filled with Input, then Output.
   //
   // To log an input/output pair, first call
-  // AecDump::GetCaptureStreamInfo.  Add the input and output to
-  // it. Then call AecDump::WriteCaptureStreamMessage.
+  // AecDump::GetCaptureStreamInfo. Add the input and output to the
+  // returned CaptureStreamInfo pointer. Then call
+  // AecDump::WriteCaptureStreamMessage.
   class CaptureStreamInfo {
    public:
     virtual ~CaptureStreamInfo() = default;
@@ -122,8 +123,7 @@ class AecDump {
 
   virtual ~AecDump() = default;
 
-  virtual std::unique_ptr<CaptureStreamInfo> CreateCaptureStreamInfo()
-      const = 0;
+  virtual CaptureStreamInfo* GetCaptureStreamInfo() = 0;
 
   // The Write* methods are always safe to call concurrently or
   // otherwise for all implementing subclasses. The intended mode of
@@ -136,8 +136,7 @@ class AecDump {
 
   virtual void WriteRenderStreamMessage(const FloatAudioFrame& src) = 0;
 
-  virtual void WriteCaptureStreamMessage(
-      std::unique_ptr<CaptureStreamInfo> stream_info) = 0;
+  virtual void WriteCaptureStreamMessage() = 0;
 
   // If not |forced|, only writes the current config if it is
   // different from the last saved one; if |forced|, writes the config