message: util: Add count_microseconds helper
diff: @@ -15,10 +15,15 @@ void UninterruptibleSleep(const std::chrono::microseconds& n);
  /**
  * Helper to count the seconds of a duration.
  *
  - * All durations should be using std::chrono and calling this should generally be avoided in code. Though, it is still
  - * preferred to an inline t.count() to protect against a reliance on the exact type of t.
  + * All durations should be using std::chrono and calling this should generally
  + * be avoided in code. Though, it is still preferred to an inline t.count() to
  + * protect against a reliance on the exact type of t.
  + *
  + * This helper is used to convert durations before passing them over an
  + * interface that doesn't support std::chrono (e.g. RPC, debug log, or the GUI)
  */
  inline int64_t count_seconds(std::chrono::seconds t) { return t.count(); }
  +inline int64_t count_microseconds(std::chrono::microseconds t) { return t.count(); }
  /**
  * DEPRECATED
  