Reformat existing code. There should be no functional effects.

webrtc/modules/audio_coding/neteq/expand.h

Index: webrtc/modules/audio_coding/neteq/expand.h
diff --git a/webrtc/modules/audio_coding/neteq/expand.h b/webrtc/modules/audio_coding/neteq/expand.h
index 000064201212d8475989ddc619ea3f20328c46ac..b015959e75829ebf278d217b51f0ca8d45cc1e2b 100644
--- a/webrtc/modules/audio_coding/neteq/expand.h
+++ b/webrtc/modules/audio_coding/neteq/expand.h
@@ -119,9 +119,11 @@ class Expand {
   // Calculate the auto-correlation of |input|, with length |input_length|
   // samples. The correlation is calculated from a downsampled version of
   // |input|, and is written to |output|. The scale factor is written to
-  // |output_scale|. Returns the length of the correlation vector.
-  int16_t Correlation(const int16_t* input, size_t input_length,
-                      int16_t* output, int16_t* output_scale) const;
+  // |output_scale|.
+  void Correlation(const int16_t* input,
+                   size_t input_length,
+                   int16_t* output,
+                   int16_t* output_scale) const;
 
   void UpdateLagIndex();