The test CCLayerTreeHostTestSetNeedsCommit2.runMultiThread is being flaky and sometimes crashes. See history of the bot: http://build.chromium.org/p/chromium.webkit/waterfall?show=Webkit%20Win Failure log: An example failure log: http://build.chromium.org/p/chromium.webkit/builders/Webkit%20Win/builds/13521
On that run it actually barfed in CCLayerTreeHostTestAddAnimationWithTimingFunction.runMultiThread. Can you take a look, Ian?
There's also this one that is from CCLayerTreeHostTestSetNeedsCommit2.runMultiThread: http://build.chromium.org/p/chromium.webkit/builders/Webkit%20Win%20%28dbg%29%281%29/builds/11826
Marked LayoutTest bugs, bugs with Chromium IDs, and some others as WontFix. Test failure bugs still are trackable via TestExpectations or disabled unit tests.