Josh Matthews

CSS image loads work again. Need to figure out why window resizing always freezes now.

@bors-servo try=wpt

@bors-servo try=wpt

Many canvas tests fail because of the following deadlock: * constellation tries to decide if it's time to save a screenshot * constellation sends a synchronous message to layout thread...

@bors-servo try=wpt

@bors-servo try=wpt

@bors-servo retry

@bors-servo try=wpt

@bors-servo try=wpt

Note to self: new layout traversal code is broken, because we end up walking up the entire DOM from each leaf node. We want to actually process all children for...