tree 8c459d6765b9318aa03e8cf7887eb036754473d0
parent 4e81c8a0cec862ac9a3261e86a01e8db23f2025f
author Lei Zhang <thestig@chromium.org> 1559667098 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1559667098 +0000

Avoid undefined behavior in CFX_ImageStretcher.

Add an assertion that CFX_ImageStretcher receives a valid |m_ClipRect|
member. Fix a known case where it can receive an invalid one from
CFX_ImageTransformer.

BUG=chromium:964872

Change-Id: I20469a7812405fd1f95c7bce2a7ea9ffb6c27afc
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/55400
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>