Remove WEB_ANIMATION_SUPPORTS_FULL_DIRECTION define

Remove WEB_ANIMATION_SUPPORTS_FULL_DIRECTION define

This is the 4th and last part of accelerated direction control.

Now that legacy path in compositor has been removed, the
WEB_ANIMATION_SUPPORTS_FULL_DIRECTION define becomes unneeded.

It builds on top of https://codereview.chromium.org/227733004,
https://codereview.chromium.org/225183014 and
https://codereview.chromium.org/576553002/

BUG=348071
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=182101

[a.renevier, 2014-09-16 18:04:27]

a.renevier@samsung.com changed reviewers:
+ ajuma@chromium.org, dglazkov@chromium.org

[ajuma, 2014-09-16 18:13:52]

non-owner lgtm

[jamesr, 2014-09-16 19:06:46]

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

[jamesr, 2014-09-16 19:06:47]

lgtm

https://codereview.chromium.org/572363002/diff/1/public/platform/WebComposito...
File public/platform/WebCompositorAnimation.h (right):

https://codereview.chromium.org/572363002/diff/1/public/platform/WebComposito...
public/platform/WebCompositorAnimation.h:8: #define
WEB_ANIMATION_SUPPORTS_FRACTIONAL_ITERATIONS 1
can this one go too?

[a.renevier, 2014-09-16 19:15:21]

The CQ bit was checked by a.renevier@samsung.com

[commit-bot: I haz the power, 2014-09-16 19:16:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/572363002/1

[commit-bot: I haz the power, 2014-09-16 19:22:35]

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

[commit-bot: I haz the power, 2014-09-16 19:22:36]

Try jobs failed on following builders:
  mac_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/mac_blink_rel/builds/23587)

[a.renevier, 2014-09-16 20:25:52]

The CQ bit was checked by a.renevier@samsung.com

[commit-bot: I haz the power, 2014-09-16 20:27:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/572363002/1

[commit-bot: I haz the power, 2014-09-16 21:25:43]

Committed patchset #1 (id:1) as 182101