Fix leak in PictureTest.cpp
Fix leak in PictureTest.cpp

TBR=schenney@chromium.org

BUG=skia:

Review URL: https://codereview.chromium.org/1210053008

shahrzadmn/skia,google/skia,ominux/skia,Jichao/skia,HalCanary/skia-hc,todotodoo/skia,noselhq/skia,noselhq/skia,vanish87/skia,pcwalton/skia,aosp-mirror/platform_external_skia,shahrzadmn/skia,tmpvar/skia.cc,todotodoo/skia,shahrzadmn/skia,todotodoo/skia,noselhq/skia,shahrzadmn/skia,rubenvb/skia,google/skia,google/skia,vanish87/skia,tmpvar/skia.cc,shahrzadmn/skia,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,qrealka/skia-hc,Jichao/skia,nvoron23/skia,google/skia,aosp-mirror/platform_external_skia,pcwalton/skia,nvoron23/skia,Hikari-no-Tenshi/android_external_skia,ominux/skia,HalCanary/skia-hc,vanish87/skia,rubenvb/skia,nvoron23/skia,shahrzadmn/skia,ominux/skia,ominux/skia,todotodoo/skia,pcwalton/skia,rubenvb/skia,google/skia,pcwalton/skia,aosp-mirror/platform_external_skia,pcwalton/skia,tmpvar/skia.cc,vanish87/skia,aosp-mirror/platform_external_skia,todotodoo/skia,aosp-mirror/platform_external_skia,rubenvb/skia,tmpvar/skia.cc,nvoron23/skia,google/skia,aosp-mirror/platform_external_skia,noselhq/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,nvoron23/skia,qrealka/skia-hc,pcwalton/skia,rubenvb/skia,google/skia,Jichao/skia,qrealka/skia-hc,google/skia,qrealka/skia-hc,noselhq/skia,qrealka/skia-hc,rubenvb/skia,tmpvar/skia.cc,HalCanary/skia-hc,todotodoo/skia,HalCanary/skia-hc,Jichao/skia,nvoron23/skia,Hikari-no-Tenshi/android_external_skia,vanish87/skia,vanish87/skia,HalCanary/skia-hc,Jichao/skia,todotodoo/skia,rubenvb/skia,noselhq/skia,ominux/skia,todotodoo/skia,Jichao/skia,Hikari-no-Tenshi/android_external_skia,Hikari-no-Tenshi/android_external_skia,ominux/skia,HalCanary/skia-hc,ominux/skia,qrealka/skia-hc,shahrzadmn/skia,pcwalton/skia,shahrzadmn/skia,qrealka/skia-hc,noselhq/skia,Hikari-no-Tenshi/android_external_skia,qrealka/skia-hc,tmpvar/skia.cc,todotodoo/skia,vanish87/skia,HalCanary/skia-hc,noselhq/skia,HalCanary/skia-hc,vanish87/skia,vanish87/skia,shahrzadmn/skia,google/skia,nvoron23/skia,ominux/skia,tmpvar/skia.cc,noselhq/skia,HalCanary/skia-hc,rubenvb/skia,tmpvar/skia.cc,tmpvar/skia.cc,HalCanary/skia-hc,Jichao/skia,Jichao/skia,Hikari-no-Tenshi/android_external_skia,ominux/skia,google/skia,pcwalton/skia,pcwalton/skia,rubenvb/skia,Hikari-no-Tenshi/android_external_skia,nvoron23/skia,aosp-mirror/platform_external_skia,Jichao/skia,rubenvb/skia,nvoron23/skia