Mark 3d-point-mapping-preserve-3d layout test as failing.
Mark 3d-point-mapping-preserve-3d layout test as failing.

Failing on Win7 bots. Image diff shows slightly different borders, but
test is still passing on Linux so can't be trivially rebaselined.

TBR=eae@chromium.org
BUG=606302

Review URL: https://codereview.chromium.org/1919013004

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#389705}

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk