[perf] Add more metrics.
[perf] Add more metrics.

Bug: skia:
Change-Id: I930eca2856b623856901358bc287eee0bf9d15f5
Reviewed-on: https://skia-review.googlesource.com/29222
Reviewed-by: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>
Commit-Queue: Joe Gregorio <b9cf2471ff6d33504cafe8e6f356b732b2cadced@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot