While the fix for
  6587863: PIT: D3D: Pixelization issues with all Swing Components
fixed all known problems with rendering of Swing components
on all hw there are still some cases where the quality could be
improved.

Here are a few known cases:
  - PolyVertTest reg. test (with -fulltest) still fails with about 10 pixels -
    due to the fact that we do not tweak the geometry in drawPoly
  - we only tweak the geometry for proper texel to pixel
    alignment for DrawTexture and FillRect,
    which leaves otehr primitives prone to minor texture mapping
    pixelization errors. This is especially important for the drawScanlines()
    case which is used for filling shapes with Paint