Catch the stragglers from skbug.com/3241

Update expectations for tests that were using SkLCGRandom (and now
use SkRandom).

TBR=benchen
BUG=skia:3241

Review URL: https://codereview.chromium.org/813513002
Remove GrGpu::flushGraphicsState

Review URL: https://codereview.chromium.org/809843002
Revert using sized formats for everything except ES 2.0.

Temporary fix for WritePixels test on Nexus 5/Nexus 7-2013.

Review URL: https://codereview.chromium.org/794273005
Give the hoisting surfaces surface props

This mimics how layers are set up in SkGpuDevice::onCreateCompatibleDevice

Review URL: https://codereview.chromium.org/809823003