Create an anonymous div for HTMLTrackElement, put the cue text into it, and append it to nsVideoFrame's caption overlay on DisplayCueText().
Merge branch 'integration' of github.com:RickEyre/mozilla-central into integration5
Removing extra whitespace.
Merge branch 'integration' of github.com:RickEyre/mozilla-central into integration5

Conflicts:
	content/html/content/src/HTMLTrackElement.cpp
	content/html/content/src/WebVTTLoadListener.cpp
	media/webvtt/parser.c
Merge branch 'integration' of github.com:RickEyre/mozilla-central into integration5

Conflicts:
	content/html/content/src/HTMLTrackElement.cpp
	content/html/content/src/HTMLTrackElement.h
	content/html/content/src/WebVTTLoadListener.cpp
	content/html/content/src/WebVTTLoadListener.h
	media/webvtt/parser.c
Moved adding the caption overlay child div to TextTrackCue.
Merge pull request #8 from JSilver99/integration

Create an anonymous div for HTMLTrackElement, put the cue text into it