Switch C++-style C headers with their C equivalents.

The C++ headers define the C functions within the std:: namespace, but
we mainly don't use the std:: namespace for C functions. Therefore we
should include the C headers.

BUG=1833
R=tommi@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1917004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4486 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/modules/audio_coding/neteq/test/RTPencode.cc

@@ -11,12 +11,12 @@
 //TODO(hlundin): Reformat file to meet style guide.
 
 /* header includes */
-#include "typedefs.h"
 #include "stdio.h"
+#include "typedefs.h"
 #include "webrtc_neteq.h" // needed for enum WebRtcNetEQDecoder
-#include <string.h>
+#include <assert.h>
 #include <stdlib.h>
-#include <cassert>
+#include <string.h>
 
 #ifdef WIN32
 #include <winsock2.h>