Use std:: on symbols declared in C++-style C headers.

src/platform/time.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 16 matching lines @@
 
 #include "platform/time.h"
 
 #if V8_OS_POSIX
 #include <sys/time.h>
 #endif
 #if V8_OS_MACOSX
 #include <mach/mach_time.h>
 #endif
 
-#include <cstring>
+#include <string.h>
 
 #include "checks.h"
 #include "cpu.h"
 #include "platform.h"
 #if V8_OS_WIN
 #include "win32-headers.h"
 #endif
 
 namespace v8 {
 namespace internal {
@@ skipping 534 matching lines @@
 
 
 // static
 bool TimeTicks::IsHighResolutionClockWorking() {
   return true;
 }
 
 #endif  // V8_OS_WIN
 
 } }  // namespace v8::internal