Save/Restore around bench runs.
Save/Restore around bench runs.

BUG=skia:

Review URL: https://codereview.chromium.org/619353002

Hikari-no-Tenshi/android_external_skia,timduru/platform-external-skia,Jichao/skia,MarshedOut/android_external_skia,pcwalton/skia,TeamTwisted/external_skia,pcwalton/skia,VRToxin-AOSP/android_external_skia,Hikari-no-Tenshi/android_external_skia,todotodoo/skia,noselhq/skia,DiamondLovesYou/skia-sys,HalCanary/skia-hc,aosp-mirror/platform_external_skia,geekboxzone/mmallow_external_skia,TeamTwisted/external_skia,TeamTwisted/external_skia,amyvmiwei/skia,pcwalton/skia,w3nd1go/android_external_skia,jtg-gg/skia,UBERMALLOW/external_skia,DiamondLovesYou/skia-sys,YUPlayGodDev/platform_external_skia,VRToxin-AOSP/android_external_skia,rubenvb/skia,MonkeyZZZZ/platform_external_skia,UBERMALLOW/external_skia,YUPlayGodDev/platform_external_skia,nvoron23/skia,nvoron23/skia,PAC-ROM/android_external_skia,AOSPB/external_skia,tmpvar/skia.cc,nvoron23/skia,pcwalton/skia,chenlian2015/skia_from_google,AOSPB/external_skia,UBERMALLOW/external_skia,spezi77/android_external_skia,timduru/platform-external-skia,jtg-gg/skia,samuelig/skia,nfxosp/platform_external_skia,MarshedOut/android_external_skia,todotodoo/skia,OneRom/external_skia,invisiblek/android_external_skia,w3nd1go/android_external_skia,invisiblek/android_external_skia,VRToxin-AOSP/android_external_skia,Igalia/skia,ominux/skia,YUPlayGodDev/platform_external_skia,w3nd1go/android_external_skia,Infinitive-OS/platform_external_skia,MonkeyZZZZ/platform_external_skia,DiamondLovesYou/skia-sys,pcwalton/skia,boulzordev/android_external_skia,invisiblek/android_external_skia,todotodoo/skia,boulzordev/android_external_skia,YUPlayGodDev/platform_external_skia,pcwalton/skia,AOSP-YU/platform_external_skia,VRToxin-AOSP/android_external_skia,invisiblek/android_external_skia,rubenvb/skia,boulzordev/android_external_skia,aosp-mirror/platform_external_skia,geekboxzone/mmallow_external_skia,spezi77/android_external_skia,Igalia/skia,AOSPB/external_skia,VRToxin-AOSP/android_external_skia,rubenvb/skia,BrokenROM/external_skia,MinimalOS-AOSP/platform_external_skia,noselhq/skia,TeamExodus/external_skia,MonkeyZZZZ/platform_external_skia,spezi77/android_external_skia,ominux/skia,shahrzadmn/skia,OneRom/external_skia,scroggo/skia,tmpvar/skia.cc,nfxosp/platform_external_skia,Infinitive-OS/platform_external_skia,timduru/platform-external-skia,todotodoo/skia,aosp-mirror/platform_external_skia,TeamExodus/external_skia,aosp-mirror/platform_external_skia,PAC-ROM/android_external_skia,rubenvb/skia,timduru/platform-external-skia,ominux/skia,google/skia,MinimalOS-AOSP/platform_external_skia,AOSP-YU/platform_external_skia,MinimalOS-AOSP/platform_external_skia,AOSPB/external_skia,shahrzadmn/skia,Infinitive-OS/platform_external_skia,invisiblek/android_external_skia,rubenvb/skia,MarshedOut/android_external_skia,google/skia,nvoron23/skia,AOSP-YU/platform_external_skia,nfxosp/platform_external_skia,Infinitive-OS/platform_external_skia,Hikari-no-Tenshi/android_external_skia,YUPlayGodDev/platform_external_skia,Jichao/skia,BrokenROM/external_skia,pcwalton/skia,YUPlayGodDev/platform_external_skia,Jichao/skia,google/skia,MarshedOut/android_external_skia,AOSP-YU/platform_external_skia,Igalia/skia,chenlian2015/skia_from_google,geekboxzone/mmallow_external_skia,todotodoo/skia,noselhq/skia,jtg-gg/skia,DiamondLovesYou/skia-sys,Hikari-no-Tenshi/android_external_skia,UBERMALLOW/external_skia,VRToxin-AOSP/android_external_skia,google/skia,BrokenROM/external_skia,UBERMALLOW/external_skia,boulzordev/android_external_skia,TeamExodus/external_skia,HalCanary/skia-hc,geekboxzone/mmallow_external_skia,amyvmiwei/skia,BrokenROM/external_skia,amyvmiwei/skia,shahrzadmn/skia,nfxosp/platform_external_skia,aosp-mirror/platform_external_skia,Hikari-no-Tenshi/android_external_skia,shahrzadmn/skia,geekboxzone/mmallow_external_skia,vanish87/skia,jtg-gg/skia,TeamTwisted/external_skia,chenlian2015/skia_from_google,shahrzadmn/skia,tmpvar/skia.cc,google/skia,UBERMALLOW/external_skia,Hikari-no-Tenshi/android_external_skia,pcwalton/skia,HalCanary/skia-hc,invisiblek/android_external_skia,vanish87/skia,Jichao/skia,UBERMALLOW/external_skia,AOSPB/external_skia,chenlian2015/skia_from_google,shahrzadmn/skia,scroggo/skia,Igalia/skia,scroggo/skia,Jichao/skia,samuelig/skia,ominux/skia,noselhq/skia,MarshedOut/android_external_skia,scroggo/skia,PAC-ROM/android_external_skia,geekboxzone/mmallow_external_skia,OneRom/external_skia,vanish87/skia,chenlian2015/skia_from_google,AOSP-YU/platform_external_skia,amyvmiwei/skia,YUPlayGodDev/platform_external_skia,PAC-ROM/android_external_skia,Infinitive-OS/platform_external_skia,BrokenROM/external_skia,noselhq/skia,BrokenROM/external_skia,nfxosp/platform_external_skia,nfxosp/platform_external_skia,AOSPB/external_skia,AOSP-YU/platform_external_skia,ominux/skia,aosp-mirror/platform_external_skia,OneRom/external_skia,Jichao/skia,HalCanary/skia-hc,Jichao/skia,TeamExodus/external_skia,amyvmiwei/skia,boulzordev/android_external_skia,TeamTwisted/external_skia,MinimalOS-AOSP/platform_external_skia,samuelig/skia,OneRom/external_skia,qrealka/skia-hc,rubenvb/skia,tmpvar/skia.cc,PAC-ROM/android_external_skia,shahrzadmn/skia,nvoron23/skia,google/skia,MonkeyZZZZ/platform_external_skia,boulzordev/android_external_skia,geekboxzone/mmallow_external_skia,DiamondLovesYou/skia-sys,BrokenROM/external_skia,MarshedOut/android_external_skia,rubenvb/skia,Infinitive-OS/platform_external_skia,w3nd1go/android_external_skia,MinimalOS-AOSP/platform_external_skia,TeamExodus/external_skia,HalCanary/skia-hc,scroggo/skia,qrealka/skia-hc,TeamTwisted/external_skia,timduru/platform-external-skia,invisiblek/android_external_skia,DiamondLovesYou/skia-sys,Infinitive-OS/platform_external_skia,qrealka/skia-hc,noselhq/skia,amyvmiwei/skia,google/skia,OneRom/external_skia,MonkeyZZZZ/platform_external_skia,vanish87/skia,AOSPB/external_skia,todotodoo/skia,TeamExodus/external_skia,TeamTwisted/external_skia,Igalia/skia,vanish87/skia,geekboxzone/mmallow_external_skia,spezi77/android_external_skia,rubenvb/skia,AOSP-YU/platform_external_skia,aosp-mirror/platform_external_skia,TeamExodus/external_skia,invisiblek/android_external_skia,MarshedOut/android_external_skia,vanish87/skia,VRToxin-AOSP/android_external_skia,MinimalOS-AOSP/platform_external_skia,boulzordev/android_external_skia,timduru/platform-external-skia,ominux/skia,Jichao/skia,MarshedOut/android_external_skia,samuelig/skia,qrealka/skia-hc,Igalia/skia,noselhq/skia,ominux/skia,PAC-ROM/android_external_skia,nfxosp/platform_external_skia,BrokenROM/external_skia,noselhq/skia,scroggo/skia,rubenvb/skia,HalCanary/skia-hc,UBERMALLOW/external_skia,aosp-mirror/platform_external_skia,Igalia/skia,w3nd1go/android_external_skia,AOSPB/external_skia,MonkeyZZZZ/platform_external_skia,YUPlayGodDev/platform_external_skia,TeamTwisted/external_skia,VRToxin-AOSP/android_external_skia,OneRom/external_skia,jtg-gg/skia,AOSP-YU/platform_external_skia,samuelig/skia,samuelig/skia,jtg-gg/skia,HalCanary/skia-hc,chenlian2015/skia_from_google,vanish87/skia,YUPlayGodDev/platform_external_skia,amyvmiwei/skia,PAC-ROM/android_external_skia,noselhq/skia,OneRom/external_skia,google/skia,spezi77/android_external_skia,Hikari-no-Tenshi/android_external_skia,MinimalOS-AOSP/platform_external_skia,timduru/platform-external-skia,TeamExodus/external_skia,scroggo/skia,MonkeyZZZZ/platform_external_skia,qrealka/skia-hc,HalCanary/skia-hc,PAC-ROM/android_external_skia,todotodoo/skia,nvoron23/skia,tmpvar/skia.cc,boulzordev/android_external_skia,tmpvar/skia.cc,TeamExodus/external_skia,w3nd1go/android_external_skia,MarshedOut/android_external_skia,qrealka/skia-hc,pcwalton/skia,samuelig/skia,AOSPB/external_skia,spezi77/android_external_skia,todotodoo/skia,nvoron23/skia,scroggo/skia,aosp-mirror/platform_external_skia,rubenvb/skia,Hikari-no-Tenshi/android_external_skia,todotodoo/skia,Infinitive-OS/platform_external_skia,UBERMALLOW/external_skia,tmpvar/skia.cc,MonkeyZZZZ/platform_external_skia,chenlian2015/skia_from_google,shahrzadmn/skia,aosp-mirror/platform_external_skia,TeamTwisted/external_skia,nfxosp/platform_external_skia,shahrzadmn/skia,google/skia,ominux/skia,nfxosp/platform_external_skia,w3nd1go/android_external_skia,tmpvar/skia.cc,w3nd1go/android_external_skia,google/skia,MonkeyZZZZ/platform_external_skia,HalCanary/skia-hc,PAC-ROM/android_external_skia,geekboxzone/mmallow_external_skia,MinimalOS-AOSP/platform_external_skia,vanish87/skia,qrealka/skia-hc,nvoron23/skia,vanish87/skia,MinimalOS-AOSP/platform_external_skia,w3nd1go/android_external_skia,AOSP-YU/platform_external_skia,Igalia/skia,amyvmiwei/skia,DiamondLovesYou/skia-sys,tmpvar/skia.cc,samuelig/skia,ominux/skia,Infinitive-OS/platform_external_skia,HalCanary/skia-hc,boulzordev/android_external_skia,Jichao/skia,VRToxin-AOSP/android_external_skia,nvoron23/skia,qrealka/skia-hc,OneRom/external_skia,jtg-gg/skia