Web Animations: Don't compare start time for AnimationPlayer sorting

Web Animations: Don't compare start time for AnimationPlayer sorting

As per recent spec changes, the start time should no longer factor in to
AnimationPlayer sort order. I've left in the SortInfo class instead of
simply holding on to an unsigned sequence number since we may in the
future add a mechanism for changing sort order, although this is easy
to remove later if won't be adding such functionality.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=178531

[alancutter (OOO until 2018), 2014-07-17 05:57:14]

lgtm

Add link to relevant spec in the description:
http://www.w3.org/TR/web-animations/#the-animation-stack

[dstockwell, 2014-07-18 01:02:30]

lgtm

[Timothy Loh, 2014-07-18 01:03:43]

The CQ bit was checked by timloh@chromium.org

[commit-bot: I haz the power, 2014-07-18 01:04:41]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/timloh@chromium.org/399033002/1

[commit-bot: I haz the power, 2014-07-18 02:20:41]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  android_blink_compile_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/android_blink_compile_db...)
  android_blink_compile_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/android_blink_compile_re...)

[commit-bot: I haz the power, 2014-07-18 02:32:03]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-07-18 02:32:04]

Try jobs failed on following builders:
  android_blink_compile_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/android_blink_compile_re...)

[Timothy Loh, 2014-07-21 00:38:28]

The CQ bit was checked by timloh@chromium.org

[commit-bot: I haz the power, 2014-07-21 00:39:26]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/timloh@chromium.org/399033002/1

[commit-bot: I haz the power, 2014-07-21 00:41:49]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  android_blink_compile_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/android_blink_compile_db...)
  android_blink_compile_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/android_blink_compile_re...)

[commit-bot: I haz the power, 2014-07-21 00:43:59]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-07-21 00:44:00]

Try jobs failed on following builders:
  android_blink_compile_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/android_blink_compile_db...)

[Timothy Loh, 2014-07-21 01:35:20]

The CQ bit was checked by timloh@chromium.org

[commit-bot: I haz the power, 2014-07-21 01:35:45]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/timloh@chromium.org/399033002/20001

[commit-bot: I haz the power, 2014-07-21 02:36:41]

Change committed as 178531