GitLab

Code using bitmaps converted with SkBitmapToN32OpaqueOrPremul() can
easily assume that the pixels are one contiguous (width*4*height)-sized
buffer. If it's not then out-of-bounds read/write can occur.

Also adds tests for SkBitmapToN32OpaqueOrPremul().

R=fmalita@chromium.org

Bug: 1147431, 1144462
Change-Id: I21f7a958a8c9231bf5f052f8ff246f2c249bd70b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2544032
Commit-Queue: danakj <danakj@chromium.org>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Cr-Commit-Position: refs/heads/master@{#828406}