ProcessPendingMessagesAction works based on subscriptions

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>

src/com/android/messaging/datamodel/action/ResendMessageAction.java

@@ -34,6 +34,8 @@ import com.android.messaging.util.LogUtil;
 public class ResendMessageAction extends Action implements Parcelable {
     private static final String TAG = LogUtil.BUGLE_DATAMODEL_TAG;
 
+    private static final String KEY_SUB_ID = "sub_id";
+
     /**
      * Manual send of existing message (no listener)
      */
@@ -87,6 +89,9 @@ public class ResendMessageAction extends Action implements Parcelable {
 
             MessagingContentProvider.notifyMessagesChanged(message.getConversationId());
 
+            actionParameters.putInt(KEY_SUB_ID,
+                    BugleDatabaseOperations.getSelfSubscriptionId(db, message.getSelfId()));
+
             // Whether we succeeded or failed we will check and maybe schedule some more work
             ProcessPendingMessagesAction.scheduleProcessPendingMessagesAction(false, this);