Change FloatingToolbar window layout type.

Floating toolbar is now rendered as TYPE_APPLICATION_ABOVE_SUB_PANEL.
This causes the FloatingToolbar to be rendered in a layer above
the text selection handles (at layer TYPE_APPLICATION_SUB_PANEL.)

Bug: 20135562
Change-Id: I1484b3493bf4cd98c679eb222270c53daa46cdf4
1 file changed