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

src/utils/random-number-generator.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
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 // modification, are permitted provided that the following conditions are
 // met:
 //
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 #include "utils/random-number-generator.h"
 
-#include <cstdio>
-#include <cstdlib>
+#include <stdio.h>
+#include <stdlib.h>
 
 #include "flags.h"
 #include "platform/mutex.h"
 #include "platform/time.h"
 #include "utils.h"
 
 namespace v8 {
 namespace internal {
 
 static LazyMutex entropy_mutex = LAZY_MUTEX_INITIALIZER;
@@ skipping 102 matching lines @@
   seed_ = seed;
   return static_cast<int>(seed >> (48 - bits));
 }
 
 
 void RandomNumberGenerator::SetSeed(int64_t seed) {
   seed_ = (seed ^ kMultiplier) & kMask;
 }
 
 } }  // namespace v8::internal