Web Inspector: [Timeline] Shrink CPU bars to make it easier to see frame information popup.
https://bugs.webkit.org/show_bug.cgi?id=110561

Reviewed by Pavel Feldman.

Area that causes frame information popup is overly "shaded" by CPU bars.

* inspector/front-end/timelinePanel.css:
(.timeline-cpu-bars .timeline-graph-bar): Reduce height and opacity.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@143864 268f45cc-cd09-0410-ab3c-d52691b4dbfc