Update Animations watchlist

This patch makes relevent word matches insensitive to capitalisation and
more lexically general.

NOTRY=TRUE

Review URL: https://chromiumcodereview.appspot.com/23503049

git-svn-id: svn://svn.chromium.org/blink/trunk@157596 bbb929c8-8fbe-4397-9dbb-9b2b20218538