Fix out of bounds memory read in GIFMovie.cpp am: 16882f7212 am: d2456e3a12 am: ffc0958605 am: df18259ff1 am: c9b947def7 am: 09ad23b21e am: 716de6b276 am: d1fb426850 am: d80a31cff8 am: 8b8fbb1e9c am: f054eb2904
Fix out of bounds memory read in GIFMovie.cpp am: 16882f7212 am: d2456e3a12 am: ffc0958605 am: df18259ff1 am: c9b947def7 am: 09ad23b21e am: 716de6b276 am: d1fb426850 am: d80a31cff8 am: 8b8fbb1e9c
am: f054eb2904

Change-Id: I0aa38c136013329f93efb583556790c3a0ac33e3

Hikari-no-Tenshi/android_external_skia,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,Hikari-no-Tenshi/android_external_skia,Hikari-no-Tenshi/android_external_skia,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia