The captions menu needs to set text-align so that it doesn't inherit from a parent container. <rdar://problem/14700285>
*** This bug has been marked as a duplicate of bug 116100 ***
Reopening - it's correct that 116100 will fix this, but since it's a bigger change I think we should do this first. It's a one line fix.
Created attachment 208460 [details] Patch
Committed r153909: <http://trac.webkit.org/changeset/153909>