Don't allow swipe into the film strip view when swipe is disabled

The swipe is supposed to be intercepted by FilmStripView, however, when the
children is not handling the scroll / fling gestures, FilmStripView will still
has to handle it.
In this case, we need to detect whether or not the swipe has been disabled.

bug:11234333
bug:11221594

Change-Id: I1d0fbac65050aef225fb880a41df735e98bf48db
1 file changed