Add Win Clang ANGLE test and perf jobs.

No-Try: true
Change-Id: I95a29b1abfd84e51f5a31d74644e5305779f0d15
Reviewed-on: https://skia-review.googlesource.com/57100
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
2 files changed