Move remaining animation and transition longhands to CSSPropertyParser

Move remaining animation and transition longhands to CSSPropertyParser

This patch moves parsing for the following properties from the legacy
property parser to the new one based around CSSParserTokens:
animation-direction
animation-fill-mode
animation-iteration-count
animation-play-state
transition-property

Since transition-property has a special value of 'none', which is only
allowed by itself, I've added a isValidAnimationPropertyList function
which checks this. The check for whether we're actually parsing
transition-property is inside this function because I think it makes
the shorthand code (in a subsequent patch) slightly cleaner.

BUG=499780
Committed: https://crrev.com/9cceab3556c26210436911e806f6abd5aff4ee30
Cr-Commit-Position: refs/heads/master@{#355032}

[Timothy Loh, 2015-10-19 05:57:40]

timloh@chromium.org changed reviewers:
+ alancutter@chromium.org, rob.buis@samsung.com

[rwlbuis, 2015-10-20 02:29:18]

lgtm

[Timothy Loh, 2015-10-20 06:04:56]

The CQ bit was checked by timloh@chromium.org

[commit-bot: I haz the power, 2015-10-20 06:05:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1413543003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1413543003/1

[commit-bot: I haz the power, 2015-10-20 06:07:17]

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

[commit-bot: I haz the power, 2015-10-20 06:07:20]

Try jobs failed on following builders:
  ios_dbg_simulator_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_dbg_simulator...)
  ios_rel_device_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ni...)
  mac_chromium_compile_dbg_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_comp...)

[Timothy Loh, 2015-10-20 09:26:27]

The CQ bit was checked by timloh@chromium.org

[Timothy Loh, 2015-10-20 09:26:28]

The patchset sent to the CQ was uploaded after l-g-t-m from rob.buis@samsung.com
Link to the patchset: https://codereview.chromium.org/1413543003/#ps20001
(title: " ")

[commit-bot: I haz the power, 2015-10-20 09:26:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1413543003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1413543003/20001

[commit-bot: I haz the power, 2015-10-20 11:03:11]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-10-20 11:04:10]

Patchset 2 (id:??) landed as
https://crrev.com/9cceab3556c26210436911e806f6abd5aff4ee30
Cr-Commit-Position: refs/heads/master@{#355032}