Make all callers of scheduleAnimation() use scheduleVisualUpdate().

Make all callers of scheduleAnimation() use scheduleVisualUpdate().

The only scheduleAnimation() methods left are going through the layers of
client interfaces. I'll rename and remove those next. This is working
towards making requestAnimationFrame() not cause a full repaint and also
making it more clear to callers that scheduling a frame causes a raster.

R=abarth@chromium.org

Committed: https://chromium.googlesource.com/external/mojo/+/3d67f42464303ec7b2932904122c118bd95b93c6

[abarth-chromium, 2015-01-26 23:37:23]

abarth@chromium.org changed reviewers:
+ abarth@chromium.org

[abarth-chromium, 2015-01-26 23:37:24]

lgtm

[esprehn, 2015-01-26 23:42:36]

Committed patchset #1 (id:1) manually as
3d67f42464303ec7b2932904122c118bd95b93c6 (presubmit successful).