CC Animation: Move PropertyAnimationState and TargetProperty to trees.

CC should not include headers from cc/animation.

This is the last CL for moving headers.

BUG=575043
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel

Review-Url: https://codereview.chromium.org/2502663003
Cr-Commit-Position: refs/heads/master@{#432292}
14 files changed