[status] Better fix for class name leak
[status] Better fix for class name leak

We still get several duplicates for some elements, but they don't seem
to increase with every update.

Bug: skia:6929
Change-Id: I74bf4c2c50f0a4aba2054cb16bb3c711ec369042
Reviewed-on: https://skia-review.googlesource.com/32001
Reviewed-by: Kevin Lubick <7cdab2cfab351f23814786ba39716e90eed69047@google.com>
Commit-Queue: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@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