Merge "CellularDataService: mCallbackMap is not thread safe" into rvc-dev

telephony/java/android/telephony/NetworkService.java

@@ -234,6 +234,9 @@ public abstract class NetworkService extends Service {
      * this method to facilitate the creation of {@link NetworkServiceProvider} instances. The system
      * will call this method after binding the network service for each active SIM slot id.
      *
+     * This methead is guaranteed to be invoked in {@link NetworkService}'s internal handler thread
+     * whose looper can be retrieved with {@link Looper.myLooper()} when override this method.
+     *
      * @param slotIndex SIM slot id the network service associated with.
      * @return Network service object. Null if failed to create the provider (e.g. invalid slot
      * index)

telephony/java/android/telephony/data/DataService.java

@@ -458,6 +458,9 @@ public abstract class DataService extends Service {
      * this method to facilitate the creation of {@link DataServiceProvider} instances. The system
      * will call this method after binding the data service for each active SIM slot id.
      *
+     * This methead is guaranteed to be invoked in {@link DataService}'s internal handler thread
+     * whose looper can be retrieved with {@link Looper.myLooper()} when override this method.
+     *
      * @param slotIndex SIM slot id the data service associated with.
      * @return Data service object. Null if failed to create the provider (e.g. invalid slot index)
      */