Mike Conley 161ac0ee7a Bug 1134252 - Don't crash the content process if RenderFrameParent is not constructed successfully. r=billm.
We were returning a nullptr from AllocPRenderFrameParent in TabParent, which causes
a killhard abort in the child. We suspect this is occurring because the TabParent
is attempting to kick off drawing in a tab that's already closed (so there is no
frame loader, which means we can't create a PRenderFrameParent). So now, we return
a PRenderFrameParent* even if constructing it was unsuccessful, and the child
destroys it once it confirms that there is an invalid layer ID associated with
the RenderFrame.

--HG--
extra : commitid : K7IDcpprjxI
extra : rebase_source : 9994cbe9a9a2a6216d189ccfe99a440f4db7b871
2015-07-21 17:34:36 -04:00
..