Stabilize transition testcase.
Roughly 1% of the times transitions/svg-visited-link-transitions.html
runs it will set the "active" class before a previous layout. When that
happens there won't be any style to animate so the elements reach the
final step immediately.
Fixed by forcing a layout pass before setting the "active" style.
BUG=450497
Review URL: https://codereview.chromium.org/876343002
git-svn-id: svn://svn.chromium.org/blink/trunk@189106 bbb929c8-8fbe-4397-9dbb-9b2b20218538
1 file changed
