fix for valgrind uninit variables
fix for valgrind uninit variables

TBR=bsalomon@google.com
BUG=skia:

Review URL: https://codereview.chromium.org/793773002

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