Mark http/tests/pointer-lock/iframe-sandboxed-allow-pointer-lock.html as crashing
Mark http/tests/pointer-lock/iframe-sandboxed-allow-pointer-lock.html as crashing

Crashes reliably for me in Debug (hits an ASSERT), might be flaky in release.

BUG=306280
R=ojan@chromium.org

Review URL: https://codereview.chromium.org/26925003

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@159388 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs