skia/animated_image_decode: Use-of-uninitialized-value in SkAnimatedImage::decodeNextFrame

Project: https://skia.googlesource.com/skia.git Detailed report: https://oss-fuzz.com/testcase?key=5526593989509120 Project: skia Fuzzer: libFuzzerskiaanimatedimagedecode Fuzz target binary: animatedimagedecode Job Type: libfuzzermsanskia Platform Id: linux Crash Type: Use-of-uninitialized-value...