cold sim clean up

- add a new field: provisioningNotificationEnabled from NetworkMisc. set
  to false if we want to hide "sign in" notification and placed
  carrier-specific notification instead. it is set on connect, once set,
  it is carrier-app's responsibility to post new UI to users
- rework on the interaction between carrier app and framework
- code cleanup
- unit test support

Bug: 28567303
Change-Id: Ic84db7ffbb920d15344717f104496d3cb82e1a85

core/java/android/net/NetworkMisc.java

@@ -51,6 +51,15 @@ public class NetworkMisc implements Parcelable {
      */
     public boolean acceptUnvalidated;
 
+    /**
+     * Set to avoid surfacing the "Sign in to network" notification.
+     * if carrier receivers/apps are registered to handle the carrier-specific provisioning
+     * procedure, a carrier specific provisioning notification will be placed.
+     * only one notification should be displayed. This field is set based on
+     * which notification should be used for provisioning.
+     */
+    public boolean provisioningNotificationDisabled;
+
     /**
      * For mobile networks, this is the subscriber ID (such as IMSI).
      */
@@ -65,6 +74,7 @@ public class NetworkMisc implements Parcelable {
             explicitlySelected = nm.explicitlySelected;
             acceptUnvalidated = nm.acceptUnvalidated;
             subscriberId = nm.subscriberId;
+            provisioningNotificationDisabled = nm.provisioningNotificationDisabled;
         }
     }
 
@@ -79,6 +89,7 @@ public class NetworkMisc implements Parcelable {
         out.writeInt(explicitlySelected ? 1 : 0);
         out.writeInt(acceptUnvalidated ? 1 : 0);
         out.writeString(subscriberId);
+        out.writeInt(provisioningNotificationDisabled ? 1 : 0);
     }
 
     public static final Creator<NetworkMisc> CREATOR = new Creator<NetworkMisc>() {
@@ -89,6 +100,7 @@ public class NetworkMisc implements Parcelable {
             networkMisc.explicitlySelected = in.readInt() != 0;
             networkMisc.acceptUnvalidated = in.readInt() != 0;
             networkMisc.subscriberId = in.readString();
+            networkMisc.provisioningNotificationDisabled = in.readInt() != 0;
             return networkMisc;
         }