GetSbrkHook 307 third_party/tcmalloc/chromium/src/malloc_hook-inl.h inline MallocHook::SbrkHook MallocHook::GetSbrkHook() { GetSbrkHook 307 third_party/tcmalloc/vendor/src/malloc_hook-inl.h inline MallocHook::SbrkHook MallocHook::GetSbrkHook() {