}
	f.startWrite(http2FrameWindowUpdate, 0, streamID)
	f.writeUint32(incr)
	return f.endWrite()
}

// A HeadersFrame is used to open a stream and additionally carries a
// header block fragment.
type http2HeadersFrame struct {
	http2FrameHeader

	// Priority is set if FlagHeadersPriority is set in the FrameHeader.
	Priority http2PriorityParam