Factor out v2.Frame.MaxSIze
Factor out v2.Frame.MaxSIze

Zirpon/tchannel,hustxiaoc/tchannel,vanloswang/tchannel,bunnyblue/tchannel,hustxiaoc/tchannel,i/tchannel,sasa233/tchannel,savaki/tchannel,vanloswang/tchannel,chenwenbin928/tchannel,i/tchannel,savaki/tchannel,vanloswang/tchannel,RyanTech/tchannel,benfleis/tchannel,benfleis/tchannel,chenwenbin928/tchannel,RyanTech/tchannel,sasa233/tchannel,Zirpon/tchannel,savaki/tchannel,RyanTech/tchannel,sasa233/tchannel,Zirpon/tchannel,i/tchannel,hustxiaoc/tchannel,benfleis/tchannel,chenwenbin928/tchannel,bunnyblue/tchannel,bunnyblue/tchannel