GitLab

The CalcDrawProps trace event in DoUpdateLayers actually measures
almost all of DoUpdateLayers. This CL moves it to the right scope
and renames it to BuildPropertyTrees.

BUG=581774
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1641023002

Cr-Commit-Position: refs/heads/master@{#372092}