The un-normalized values depend on the number of frames rendered, so
if we optimize down one time, the other ms values all increase,
because we are rendering more frames. This generates spurious perf
alerts from the perf dashboard.

BUG=None

Change-Id: I1bc480141a8cad7eee96bcdf4d6747a3cbae30f2
Reviewed-on: https://chromium-review.googlesource.com/280980Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>