module Protocol::HTTP2::FlowControlled

def send_window_update(window_increment)

Notify the remote end that we are prepared to receive more data: 
def send_window_update(window_increment)
	frame = WindowUpdateFrame.new(self.id)
	frame.pack window_increment
	
	write_frame(frame)
	
	@local_window.expand(window_increment)
end