Currently eglGetRenderBufferANDROID is being called for each layer
which is not needed. This change calls this API once in set call,
and passes the 'render buffer' to drawLayerUsingCopybit.
Change-Id: I310163db02df13e8c03b51d73f291588fbf08160
* Use the vsync uevents from the kernel to start
surfaceflinger composition.
* This patch also does some code cleanup
- Move copybit specific functions to copybit files.
- Cleanup verbose logging.
Change-Id: I8ca3cd7a7ceb53655ed0fcf39ac2cb35e6cbe890
