tree 5ce81d2b69ba8e12e6c9fcda54d3d6e409762662
parent c86e356c31a90805c4e4c54e894b0097c111f09e
author Tom Sepez <tsepez@chromium.org> 1579210347 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1579210347 +0000

Avoid underflow before calling CFDE_TextEditEngine::AdjustGap().

The text by itself may already exceed the limit if it was previously
granted an exemption. Increasing the limit maintains the invariant
that |text_length_| <= |character_limit_|.

-- Add the link to the explainer dsinclair suggested

Bug: chromium:1029437
Change-Id: I7962522dc8253f6070524c3342b65bd3aefca5bf
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/65190
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>