Bug: 15118640
* Prevent over-stuffing the queue by dropping frames
* Prevent double-drawing in one pulse by RT by deferring
vsync registration until post-draw so that it catches
the next vsync pulse instead of the current one
* Bias vsync race condition towards the UI thread
* Fix queueDelay to actually work
Change-Id: Ibf584258bd93ebcbba058bd976dc8b307f1c6155
Bug: 13952590
It was attempting to flush state changes after the canvas was
destroyed, which caused layer updates to crash.
Due to the removal of SetDisplayListData, the sync mode isn't able
to do anything ever, so remove it.
Change-Id: I1e18ce288d81fd47cc6e612afda9476f75ecef2e
