Disable four tests that become flaky with the blink scheduler
Disable four tests that become flaky with the blink scheduler

Disable the following tests:
fast/multicol/span/span-as-immediate-child-generated-content.html
fast/multicol/span/span-as-immediate-child-property-removal.html
fast/multicol/span/span-as-immediate-columns-child-removal.html
fast/multicol/span/span-as-immediate-columns-child-dynamic.html

There are subtle layout differences depending on the order some of the
tasks happen, which are probably very difficult to fix. Judging by the
comments on crbug.com/305036 it's probably not worth fixing.

BUG=305036,432129

Review URL: https://codereview.chromium.org/793413002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@187041 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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