GitLab

Instead of hardcoding a top and bottom border in the graph, add a border
around each node's bounding area in boundingForce. This will keep nodes
away from the lane markers as well as the graph edges.

R=siggi

Bug: 1086231
Change-Id: I58b52649aec0e921de5a85d8bd191591bf36f13b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2222529Reviewed-by: Sigurður Ásgeirsson <siggi@chromium.org>
Commit-Queue: Sigurður Ásgeirsson <siggi@chromium.org>
Auto-Submit: Joe Mason <joenotcharles@chromium.org>
Cr-Commit-Position: refs/heads/master@{#773358}