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
diff --git a/webrtc/tools/simple_command_line_parser.cc b/webrtc/tools/simple_command_line_parser.cc
index d6a8c1b..62aba3d 100644
--- a/webrtc/tools/simple_command_line_parser.cc
+++ b/webrtc/tools/simple_command_line_parser.cc
@@ -10,8 +10,9 @@
 
 #include "webrtc/tools/simple_command_line_parser.h"
 
-#include <cstdio>
-#include <cstdlib>
+#include <stdio.h>
+#include <stdlib.h>
+
 #include <string>
 
 namespace webrtc {