69adc9c7c0
Delete unused ConvertFromYV12, and dead prototypes ConvertRGB24ToARGB ConvertNV12ToRGB565. Move Calc16ByteAlignedStride to the test file where it is used. BUG= Review-Url: https://codereview.webrtc.org/2021843002 Cr-Commit-Position: refs/heads/master@{#13003}