SVG: Fix getCharNumAtPosition() for sideways-lr
Bug: 40501131
Change-Id: Ic2e0f313dbcecdb9c2b49a269d3ffc95282b546e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5825983
Reviewed-by: Koji Ishii kojii@chromium.org
Auto-Submit: Kent Tamura tkent@chromium.org
Commit-Queue: Koji Ishii kojii@chromium.org
Cr-Commit-Position: refs/heads/main@{#1349714}