When we're navigating during system memory pressure conditions, we know that the page isn't going into PageCache, so is basically guaranteed to generate lots of garbage. We should do a full GC to make sure we soften the peak memory consumption during this stage.
Created attachment 246685 [details] Patch
Comment on attachment 246685 [details] Patch r=me(tm)
Comment on attachment 246685 [details] Patch Clearing flags on attachment: 246685 Committed r180192: <http://trac.webkit.org/changeset/180192>
All reviewed patches have been landed. Closing bug.