make blitAntiH2 virtual, to prep for larger change
make blitAntiH2 virtual, to prep for larger change

testing...

BUG=skia:
TBR=

Review URL: https://codereview.chromium.org/1048323005

HalCanary/skia-hc,timduru/platform-external-skia,Infinitive-OS/platform_external_skia,aosp-mirror/platform_external_skia,MarshedOut/android_external_skia,nvoron23/skia,MinimalOS-AOSP/platform_external_skia,qrealka/skia-hc,AOSPB/external_skia,YUPlayGodDev/platform_external_skia,BrokenROM/external_skia,vanish87/skia,geekboxzone/mmallow_external_skia,tmpvar/skia.cc,HalCanary/skia-hc,boulzordev/android_external_skia,Infinitive-OS/platform_external_skia,noselhq/skia,shahrzadmn/skia,VRToxin-AOSP/android_external_skia,timduru/platform-external-skia,google/skia,tmpvar/skia.cc,pcwalton/skia,MarshedOut/android_external_skia,TeamTwisted/external_skia,OneRom/external_skia,Infinitive-OS/platform_external_skia,tmpvar/skia.cc,MinimalOS-AOSP/platform_external_skia,geekboxzone/mmallow_external_skia,google/skia,google/skia,boulzordev/android_external_skia,PAC-ROM/android_external_skia,qrealka/skia-hc,Hikari-no-Tenshi/android_external_skia,UBERMALLOW/external_skia,ominux/skia,PAC-ROM/android_external_skia,shahrzadmn/skia,vanish87/skia,amyvmiwei/skia,TeamTwisted/external_skia,rubenvb/skia,aosp-mirror/platform_external_skia,Infinitive-OS/platform_external_skia,VRToxin-AOSP/android_external_skia,BrokenROM/external_skia,geekboxzone/mmallow_external_skia,invisiblek/android_external_skia,todotodoo/skia,MinimalOS-AOSP/platform_external_skia,todotodoo/skia,aosp-mirror/platform_external_skia,VRToxin-AOSP/android_external_skia,rubenvb/skia,MonkeyZZZZ/platform_external_skia,nvoron23/skia,AOSP-YU/platform_external_skia,invisiblek/android_external_skia,ominux/skia,TeamTwisted/external_skia,w3nd1go/android_external_skia,PAC-ROM/android_external_skia,boulzordev/android_external_skia,MarshedOut/android_external_skia,UBERMALLOW/external_skia,w3nd1go/android_external_skia,todotodoo/skia,TeamExodus/external_skia,Jichao/skia,UBERMALLOW/external_skia,nfxosp/platform_external_skia,MarshedOut/android_external_skia,ominux/skia,Jichao/skia,MonkeyZZZZ/platform_external_skia,Infinitive-OS/platform_external_skia,todotodoo/skia,MonkeyZZZZ/platform_external_skia,nfxosp/platform_external_skia,vanish87/skia,qrealka/skia-hc,Hikari-no-Tenshi/android_external_skia,nfxosp/platform_external_skia,MonkeyZZZZ/platform_external_skia,nvoron23/skia,TeamExodus/external_skia,Jichao/skia,tmpvar/skia.cc,qrealka/skia-hc,invisiblek/android_external_skia,MarshedOut/android_external_skia,invisiblek/android_external_skia,geekboxzone/mmallow_external_skia,HalCanary/skia-hc,VRToxin-AOSP/android_external_skia,tmpvar/skia.cc,shahrzadmn/skia,AOSPB/external_skia,Hikari-no-Tenshi/android_external_skia,shahrzadmn/skia,AOSP-YU/platform_external_skia,boulzordev/android_external_skia,PAC-ROM/android_external_skia,OneRom/external_skia,spezi77/android_external_skia,google/skia,ominux/skia,MonkeyZZZZ/platform_external_skia,w3nd1go/android_external_skia,VRToxin-AOSP/android_external_skia,VRToxin-AOSP/android_external_skia,google/skia,noselhq/skia,OneRom/external_skia,MinimalOS-AOSP/platform_external_skia,PAC-ROM/android_external_skia,ominux/skia,Jichao/skia,amyvmiwei/skia,ominux/skia,amyvmiwei/skia,shahrzadmn/skia,OneRom/external_skia,Hikari-no-Tenshi/android_external_skia,Jichao/skia,HalCanary/skia-hc,w3nd1go/android_external_skia,todotodoo/skia,aosp-mirror/platform_external_skia,vanish87/skia,TeamExodus/external_skia,YUPlayGodDev/platform_external_skia,rubenvb/skia,OneRom/external_skia,pcwalton/skia,aosp-mirror/platform_external_skia,UBERMALLOW/external_skia,vanish87/skia,geekboxzone/mmallow_external_skia,PAC-ROM/android_external_skia,qrealka/skia-hc,vanish87/skia,HalCanary/skia-hc,pcwalton/skia,MinimalOS-AOSP/platform_external_skia,nvoron23/skia,VRToxin-AOSP/android_external_skia,BrokenROM/external_skia,TeamTwisted/external_skia,pcwalton/skia,pcwalton/skia,Infinitive-OS/platform_external_skia,HalCanary/skia-hc,Infinitive-OS/platform_external_skia,rubenvb/skia,boulzordev/android_external_skia,w3nd1go/android_external_skia,YUPlayGodDev/platform_external_skia,boulzordev/android_external_skia,nfxosp/platform_external_skia,MinimalOS-AOSP/platform_external_skia,nfxosp/platform_external_skia,HalCanary/skia-hc,MinimalOS-AOSP/platform_external_skia,w3nd1go/android_external_skia,google/skia,OneRom/external_skia,BrokenROM/external_skia,pcwalton/skia,amyvmiwei/skia,noselhq/skia,AOSPB/external_skia,google/skia,noselhq/skia,Infinitive-OS/platform_external_skia,OneRom/external_skia,qrealka/skia-hc,w3nd1go/android_external_skia,VRToxin-AOSP/android_external_skia,OneRom/external_skia,shahrzadmn/skia,pcwalton/skia,timduru/platform-external-skia,invisiblek/android_external_skia,invisiblek/android_external_skia,Hikari-no-Tenshi/android_external_skia,spezi77/android_external_skia,YUPlayGodDev/platform_external_skia,MarshedOut/android_external_skia,YUPlayGodDev/platform_external_skia,aosp-mirror/platform_external_skia,nfxosp/platform_external_skia,MinimalOS-AOSP/platform_external_skia,todotodoo/skia,TeamTwisted/external_skia,ominux/skia,spezi77/android_external_skia,AOSP-YU/platform_external_skia,TeamTwisted/external_skia,amyvmiwei/skia,geekboxzone/mmallow_external_skia,google/skia,boulzordev/android_external_skia,YUPlayGodDev/platform_external_skia,aosp-mirror/platform_external_skia,Jichao/skia,Hikari-no-Tenshi/android_external_skia,BrokenROM/external_skia,BrokenROM/external_skia,pcwalton/skia,spezi77/android_external_skia,Jichao/skia,MarshedOut/android_external_skia,TeamExodus/external_skia,google/skia,nvoron23/skia,Jichao/skia,Hikari-no-Tenshi/android_external_skia,invisiblek/android_external_skia,noselhq/skia,rubenvb/skia,MinimalOS-AOSP/platform_external_skia,rubenvb/skia,rubenvb/skia,OneRom/external_skia,PAC-ROM/android_external_skia,timduru/platform-external-skia,tmpvar/skia.cc,google/skia,TeamExodus/external_skia,MonkeyZZZZ/platform_external_skia,nfxosp/platform_external_skia,vanish87/skia,PAC-ROM/android_external_skia,VRToxin-AOSP/android_external_skia,w3nd1go/android_external_skia,aosp-mirror/platform_external_skia,rubenvb/skia,UBERMALLOW/external_skia,amyvmiwei/skia,nvoron23/skia,boulzordev/android_external_skia,nvoron23/skia,Jichao/skia,AOSP-YU/platform_external_skia,shahrzadmn/skia,BrokenROM/external_skia,nvoron23/skia,AOSP-YU/platform_external_skia,geekboxzone/mmallow_external_skia,AOSPB/external_skia,noselhq/skia,TeamExodus/external_skia,rubenvb/skia,noselhq/skia,AOSPB/external_skia,UBERMALLOW/external_skia,UBERMALLOW/external_skia,HalCanary/skia-hc,spezi77/android_external_skia,geekboxzone/mmallow_external_skia,Hikari-no-Tenshi/android_external_skia,BrokenROM/external_skia,aosp-mirror/platform_external_skia,UBERMALLOW/external_skia,qrealka/skia-hc,HalCanary/skia-hc,TeamExodus/external_skia,TeamTwisted/external_skia,TeamExodus/external_skia,YUPlayGodDev/platform_external_skia,tmpvar/skia.cc,todotodoo/skia,timduru/platform-external-skia,AOSPB/external_skia,todotodoo/skia,AOSPB/external_skia,HalCanary/skia-hc,nfxosp/platform_external_skia,nvoron23/skia,invisiblek/android_external_skia,AOSP-YU/platform_external_skia,AOSP-YU/platform_external_skia,ominux/skia,noselhq/skia,AOSP-YU/platform_external_skia,geekboxzone/mmallow_external_skia,vanish87/skia,pcwalton/skia,MarshedOut/android_external_skia,AOSP-YU/platform_external_skia,tmpvar/skia.cc,rubenvb/skia,YUPlayGodDev/platform_external_skia,MarshedOut/android_external_skia,PAC-ROM/android_external_skia,shahrzadmn/skia,amyvmiwei/skia,ominux/skia,AOSPB/external_skia,boulzordev/android_external_skia,MonkeyZZZZ/platform_external_skia,UBERMALLOW/external_skia,AOSPB/external_skia,YUPlayGodDev/platform_external_skia,w3nd1go/android_external_skia,spezi77/android_external_skia,aosp-mirror/platform_external_skia,TeamTwisted/external_skia,amyvmiwei/skia,MonkeyZZZZ/platform_external_skia,todotodoo/skia,nfxosp/platform_external_skia,Infinitive-OS/platform_external_skia,tmpvar/skia.cc,shahrzadmn/skia,timduru/platform-external-skia,timduru/platform-external-skia,qrealka/skia-hc,MonkeyZZZZ/platform_external_skia,vanish87/skia,noselhq/skia,TeamExodus/external_skia,TeamTwisted/external_skia