GitLab

Textfield creates partial selections from the point of the cursor on
shift-up/down.

Bug: 892216
Change-Id: I3196972dea1abeb5ffbf2d4381d27ca067e41bc6
Reviewed-on: https://chromium-review.googlesource.com/c/1276849Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Commit-Queue: Justin Donnelly <jdonnelly@chromium.org>
Cr-Commit-Position: refs/heads/master@{#599788}