design doc for new triage page.
design doc for new triage page.

BUG=skia:

Change-Id: I0c462088bb4202d52147dc388d6caf15b7dae522
Reviewed-on: https://skia-review.googlesource.com/4598
Commit-Queue: Joe Gregorio <b9cf2471ff6d33504cafe8e6f356b732b2cadced@google.com>
Reviewed-by: Ben Wagner <3ef7217be91069877d94f7907ce5479000772cd3@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