Some times tiles with the same wireID survives the wireID
filtering in kit, so we should do that in wsd too.
The issue is with the tilesBeingRendered construction. First when
one tile is filtered out on kit side the client remains subcribed
to the tile, since wsd does not know filtering happened.
Second via the tilesBeingRendered object more clients can be subcribed
to the same tile and so when one client request a new version of this
tile (with an old wireID) the rendered tile is sent to all subscribed
clients even if the other clients has up-to-date tiles.
Change-Id: I4ca6b7a83a5d6979a9f924d766a71aba5e5362c7
Store the tile cache names and drop outdated tiles
times to times, so we can avoid tile rendering / sending to
stuck.
Change-Id: Ibff001307c7c660cbc57ab20c29c430e0090444d
assert()'s are no-op in the release builds, but we still want to see threading
problems in the log at least.
Change-Id: Idb02bb018e8f2d628a57ab570249613ad00bcff2
While message emplacement happens in the DocumentBroker poll, we
can be sure that the next iteration of the poll will call
hasQueuedWrites before polling.
