GitLab

When users select a capture region in Capture Mode, they can fine tune
it. To make this process more precise, we display a magnifying glass
at their cursor. Currently the MagnifierGlass uses hard-coded values to
draw its border which don't match Capture Mode's spec.

This CL refactors MagnifierGlass to take parameters for its border so
the magnifying glass for the capture region can be up-to-spec.

Test: manual
Bug: 1133751
Change-Id: I4867176e4a32e9f8271cf1168846caf37ca5d6b9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2454269Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Commit-Queue: Jeremy Chinsen <chinsenj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#814428}