Scaled bitmap for perf improvements

Turned out the bottle neck was in bitmap blip (copy) during #setPixels
call in buffer. For perf improvements here we're scaling bitmaps down
and scale up during canvas drawBitmap. This lowers rendering (10 buttons
animating) from 110ms down to ~30ms.

Bugs: 72445494
Test: Screenshot test + manual verification

Change-Id: Ia8a24c5e0ee30693cda6dc481799e271e610fe5a
(cherry picked from commit e4e97a4c63e32f65c678b2fec0ea08e44a0f3a7c)