Remove std:: prefixes from C functions in talk/.

std::memcpy -> memcpy for instance. This change was motivated by a
compile report complaining that std::rand() was used instead of rand(),
probably with a stdlib.h include instead of cstdlib. Use of C functions
without the std:: prefix is a lot more common, so removing std:: to
address this.

BUG=
R=tommi@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/9559004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5657 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/talk/base/template_util.h b/talk/base/template_util.h
index 5cc4ba4..00f1d7d 100644
--- a/talk/base/template_util.h
+++ b/talk/base/template_util.h
@@ -5,7 +5,7 @@
 #ifndef TALK_BASE_TEMPLATE_UTIL_H_
 #define TALK_BASE_TEMPLATE_UTIL_H_
 
-#include <cstddef>  // For size_t.
+#include <stddef.h>  // For size_t.
 
 namespace talk_base {