[task scheduler] Add Google site verification page
[task scheduler] Add Google site verification page

BUG=skia:6070

Change-Id: I2c1a2bf4fea361a046cf2111fe523eb6f66e1267
Reviewed-on: https://skia-review.googlesource.com/7354
Commit-Queue: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@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