tree ccdde8392bca9aa5eb126ca5eb318a88962c01c0
parent 8fd3d327fa3c3e7ef313952886ec6e21a9c8b076
author Lei Zhang <thestig@chromium.org> 1560815035 +0000
committer Lei Zhang <thestig@chromium.org> 1560815035 +0000

M76: 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
TBR=tsepez@chromium.org

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>
(cherry picked from commit 782c5be63d0c4ba9a923a2b40241b003cdc25c18)
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/56393
Reviewed-by: Lei Zhang <thestig@chromium.org>