VTTCue: Don't compare m_displayPosition against undefinedPosition

VTTCue::m_displayPosition is a std::pair<float, float>, and not explicitly
initialized. There's no reason to assume it'll take on the value
undefinedPosition, and always setting the computed value should not hurt.

BUG=448000

Review URL: https://codereview.chromium.org/853933002

git-svn-id: svn://svn.chromium.org/blink/trunk@188471 bbb929c8-8fbe-4397-9dbb-9b2b20218538
1 file changed
tree: 0bc28f3f6c18ac6dd1537236d97665e24418f971
  1. third_party/