Convert some more things to size_t.

webrtc/modules/audio_coding/codecs/ilbc/enhancer.h

Index: webrtc/modules/audio_coding/codecs/ilbc/enhancer.h
diff --git a/webrtc/modules/audio_coding/codecs/ilbc/enhancer.h b/webrtc/modules/audio_coding/codecs/ilbc/enhancer.h
index 78a12d34cbfb269e0ca3705b9bd2c5044008a9f0..ed219fb1bbf506a7dbbba0b490c1fed8b7dff35d 100644
--- a/webrtc/modules/audio_coding/codecs/ilbc/enhancer.h
+++ b/webrtc/modules/audio_coding/codecs/ilbc/enhancer.h
@@ -29,10 +29,10 @@
 void WebRtcIlbcfix_Enhancer(
     int16_t *odata,   /* (o) smoothed block, dimension blockl */
     int16_t *idata,   /* (i) data buffer used for enhancing */
-    int16_t idatal,   /* (i) dimension idata */
-    int16_t centerStartPos, /* (i) first sample current block within idata */
-    int16_t *period,   /* (i) pitch period array (pitch bward-in time) */
-    int16_t *plocs,   /* (i) locations where period array values valid */
+    size_t idatal,   /* (i) dimension idata */
+    size_t centerStartPos, /* (i) first sample current block within idata */
+    size_t *period,   /* (i) pitch period array (pitch bward-in time) */
+    const size_t *plocs,   /* (i) locations where period array values valid */
     size_t periodl   /* (i) dimension of period and plocs */
                             );