D3D11: Don't dirty all uniforms on program change. (2/2)
D3D11: Don't dirty all uniforms on program change. (2/2)

Second patch for addressing missed comments.

BUG=angleproject:2053

Change-Id: I1268d571913f8ce7efa7b94a5d4e47cf9a80c3c0
Reviewed-on: https://chromium-review.googlesource.com/526275
Reviewed-by: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>

ecoal95/angle,MSOpenTech/angle,ecoal95/angle,MSOpenTech/angle,MSOpenTech/angle,ecoal95/angle,ppy/angle,ppy/angle,ppy/angle,ecoal95/angle,MSOpenTech/angle,ecoal95/angle,ppy/angle