PVS-Studio warning V524 for Chromium

class CONTENT_EXPORT EventPacket {
  ....
  InputEvents::const_iterator begin() const
    { return events_.end(); }
  InputEvents::const_iterator end() const
    { return events_.end(); }
  ....
protected:
  InputEvents events_;
  ....
};

This suspicious code was found in Chromium project by PVS-Studio static code analyzer.
Warning message is:
V524 It is odd that the body of 'end' function is fully equivalent to the body of 'begin' function. event_packet.h 36

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