Disable virtual/gpu-rasterization/images/cross-fade-background-size.html

Minor differences on Windows bots.

TBR=xhwang@chromium.org
NOTRY=true
BUG=699573

Review-Url: https://codereview.chromium.org/2741693002
Cr-Commit-Position: refs/heads/master@{#455714}
1 file changed