Chromium RefCounted Pattern

1template <class T>
2class RefCounted {
3 public:
4  void AddRef() const {
5    ++ref_count_;
6  }
7  void Release() const {
8    if (--ref_count_ == 0)
9      delete static_cast<const T*>(this);
10  }
11 private:
12  mutable int ref_count_ = 0;
13};