commit 5788faaa2ac4203827c68006b669e277d441e2e4
author ajuma <ajuma@chromium.org> Fri Feb 13 09:05:47 2015 -0800
committer Commit bot <commit-bot@chromium.org> Fri Feb 13 09:05:47 2015 -0800
tree cdd8db5b902775e6ed9363b583195db6ab5d7cfc
parent 95f192d19938b98a45dd1fa4112d965f60d10516

Fix SkComposeImageFilter's bounds computation and offset handling

This makes SkComposeImageFilter::computeFastBounds compose its
filters' bounds (rather than falling back to
SkImageFilter::computeFastBounds, which takes the union of the bounds).

This also makes SkComposeImageFilter::onFilterImage correctly handle
an offset produced when applying the inner filter; such offsets were
previously ignored.

BUG=chromium:453924

Review URL: https://codereview.chromium.org/908273002