Merge google-perftools r109 (the current contents of third_party/tcmalloc/vendor)

third_party/tcmalloc/chromium/src/linked_list.h

 // Copyright (c) 2008, Google Inc.
 // 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
@@ skipping 18 matching lines @@
 
 // ---
 // Author: Sanjay Ghemawat <opensource@google.com>
 //
 // Some very basic linked list functions for dealing with using void * as
 // storage.
 
 #ifndef TCMALLOC_LINKED_LIST_H_
 #define TCMALLOC_LINKED_LIST_H_
 
+#include <stddef.h>
+
 namespace tcmalloc {
 
 inline void *SLL_Next(void *t) {
   return *(reinterpret_cast<void**>(t));
 }
 
 inline void SLL_SetNext(void *t, void *n) {
   *(reinterpret_cast<void**>(t)) = n;
 }
 
@@ skipping 42 matching lines @@
   while (head) {
     count++;
     head = SLL_Next(head);
   }
   return count;
 }
 
 }  // namespace tcmalloc
 
 #endif  // TCMALLOC_LINKED_LIST_H_