Transitions: Downgrade transition to animation after it has finished

Transitions: Downgrade transition to animation after it has finished

When a transition finishes, it needs to be downgraded to a normal animation
to avoid retriggering another transition when it is replayed via the Web
Animations API. This occurred in cancel(), but cancel() is no longer always
called when a transition is finished. This change ensures that transitions
are downgraded regardless of how it was finished.

BUG=464247
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=192500

[samli, 2015-03-25 03:07:22]

samli@chromium.org changed reviewers:
+ dstockwell@chromium.org

[dstockwell, 2015-03-25 03:19:46]

lgtm

[samli, 2015-03-25 04:02:55]

The CQ bit was checked by samli@chromium.org

[commit-bot: I haz the power, 2015-03-25 04:03:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1030103002/1

[commit-bot: I haz the power, 2015-03-25 06:28:48]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=192500