hwui: This code should only be enabled with QCOM_BSP

 * Crashy crashy!

Change-Id: I1a06ac54a8ce2dccbf4a67424b0cbb6e7dd21e8b
mdpi drawables for Navigation Bar Quick Launch Shortcuts

Change-Id: Ie7f05ea58916f9a12479e15475eaabcd3931f0d2
Improving pie control's user interaction

User feedback showed that it is sometimes difficult to interact
with pie controls. This commit adds some tweaks to how pie
controls react on user touch events.

This changes:
* Pie trigger on LEFT and RIGHT are now more forgiving in the
  initial phase of a swipe. (This should reduce problems when
  trying to activate the pie with a thumb.)
* Pie items are now more sloppy when it comes to focus.

Patch Set #2:
* Removed sloppy focus.

Change-Id: Ib21556ed7f7ff9c6cdbcd1760e94a17c8534706a
Revert "Remove opaque check in GLRenderer when preparing dirty region."

 * This causes artifacts even with 8974 drivers.

This reverts commit c422280a7668ddbe1c4e399b083ec3d8a04059b1.

Change-Id: Iec4addc2d8aaeb6ce6a359aafd9fd9b97aef95e6