DescriptionClean up RenderViewHostManager swapping logic.
Makes the difference between swapping SiteInstances and swapping
BrowsingInstances explicit, and adds CHECKs to enforce invariants
more effectively.
BUG=123007
TEST=No functionality change.
[Closed: All changes have landed separately.]
Patch Set 1 #Patch Set 2 : Merge and fix conflicts #Patch Set 3 : Fix failing test. #Patch Set 4 : Fix merge conflict # |