Using ring buffer for AudioVector in NetEq.

webrtc/modules/audio_coding/neteq/dsp_helper.h

Index: webrtc/modules/audio_coding/neteq/dsp_helper.h
diff --git a/webrtc/modules/audio_coding/neteq/dsp_helper.h b/webrtc/modules/audio_coding/neteq/dsp_helper.h
index 269c2eb0f2557e317c715f21c8298d59b499d947..dd5972beb4c2ace9508e890eb57e440afac7829b 100644
--- a/webrtc/modules/audio_coding/neteq/dsp_helper.h
+++ b/webrtc/modules/audio_coding/neteq/dsp_helper.h
@@ -67,6 +67,14 @@ class DspHelper {
 
   // Same as above, but processes |length| samples from |signal|, starting at
   // |start_index|.
+  static int RampSignal(AudioVector* signal,
+                        size_t start_index,
+                        size_t length,
+                        int factor,
+                        int increment);
+
+  // Same as above, but processes |length| samples from |signal|, starting at
+  // |start_index|.
   static int RampSignal(AudioMultiVector* signal,
                         size_t start_index,
                         size_t length,