Remove all ro.hwui.* tuning props and instead
calculate them from the screen resolution.
Or just hardcode them to what all devices
were hardcoding them to anyway.
Bug: 63741221
Test: Check cache size results on sailfish
Change-Id: I8b0d210572a246f4fefb076935cf5156a70c274c
bug:21588246
Ensure we always set the mask before clearing, and removes
some unneeded optimizations around mask usage in
debug (overdraw) mode.
Change-Id: I71ed06c16f8d9f158953d5aa160098514f0f7f00
