code: func (c *LayerTree) ProfileSnapshot(snapshotId string, minRepeatCount int, minDuration float64, clipRect *DOMRect) ([]float64, error) {
  	var v LayerTreeProfileSnapshotParams
  	v.SnapshotId = snapshotId
  	v.MinRepeatCount = minRepeatCount
  	v.MinDuration = minDuration
  	v.ClipRect = clipRect
  	return c.ProfileSnapshotWithParams(&v)
  }
docs: // ProfileSnapshot -
  // snapshotId - The id of the layer snapshot.
  // minRepeatCount - The maximum number of times to replay the snapshot (1, if not specified).
  // minDuration - The minimum duration (in seconds) to replay the snapshot.
  // clipRect - The clip rectangle to apply when replaying the snapshot.
  // Returns -  timings - The array of paint profiles, one per run.