TCMalloc_SystemAddGuard 84 third_party/tcmalloc/chromium/src/page_heap_allocator.h size_t guard_size = TCMalloc_SystemAddGuard(free_area_, TCMalloc_SystemAddGuard 83 third_party/tcmalloc/chromium/src/system-alloc.h extern size_t TCMalloc_SystemAddGuard(void* start, size_t size);