Remove waitForVsync support.
Vsync will be done explicitly by clients outside of overlay.
Remove support for the unused getOvPipeType API.
Remove redundant state checks in class Overlay
Change-Id: I34f00e1334bbd9fad130bdefeaf0426ebbd638a1
Add support for different types of external-only layers
EXTERNAL_ONLY: General purpose
EXTERNAL_BLOCK: Blocks the display of other ext-only layers
EXTERNAL_CC: Used for closed captions with videos.
Change-Id: I7cb531a55a2f0015e3a51673faf08941bcea1923