Replace ConcurrentHashMap#computeIfAbsent() with containsKey() and put()
since computeIfAbsent() is added in API level 24.
Bug: 158846265
Test: Build
Signed-off-by: Taesu Lee <taesu82.lee@samsung.com>
Change-Id: I3c43f0d7b1f289f0442c9359de4f099217244387
PorcessPendingMessagesAction queues one message for sending/downloading
associated with a subscription triggering current action at a time. And
the ConnectivityUtil also works based on subscriptions so that pending
messages can be processed regardless of other phones' state in multi-sim
case.
It includes cleanup code as well.
Test: Manual
Change-Id: Id6b4f4a0aa6a3291e7a4d8a5d3f0fbb9db3c5b86
Signed-off-by: Taesu Lee <taesu82.lee@samsung.com>