Fix build errors on OS X Lion.

TBR=henrika@webrtc.org
TEST=build on Lion, trybots
Review URL: https://webrtc-codereview.appspot.com/583005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2261 4adac7df-926f-26a2-2b94-8c16560cd09d

src/modules/audio_coding/neteq/test/NetEqRTPplay.cc

@@ -10,9 +10,11 @@
 
 //TODO(hlundin): Reformat file to meet style guide.
 
+#include <assert.h>
+#include <stdio.h>
+
 /* header includes */
 #include "typedefs.h"
-#include "stdio.h"
 #include "webrtc_neteq.h"
 #include "webrtc_neteq_internal.h"
 #include "webrtc_neteq_help_macros.h"