Fold VTTCue::createCueRenderingTree into VTTCue::updateDisplayTree

updateDisplayTree is the only caller of the former, and this split doesn't
really help much at the moment.

BUG=321654

Review URL: https://codereview.chromium.org/923563002

git-svn-id: svn://svn.chromium.org/blink/trunk@190061 bbb929c8-8fbe-4397-9dbb-9b2b20218538
2 files changed
tree: 1c7a3edfe0e2bd57823d127eb6b560b47c5ce109
  1. third_party/