[Android compile server] Resolve the tree broken metric if there is a successful build
[Android compile server] Resolve the tree broken metric if there is a successful build

Bug: skia:8619
Change-Id: I2df6bc82e0e517edd34a46542cebd814fa5034a8
Reviewed-on: https://skia-review.googlesource.com/c/177324
Reviewed-by: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>
Commit-Queue: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@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