Merge "IWLAN handover fix" into rvc-dev am: 5e14ee30

                    // If handover fails, we need to tear down the existing connection, so the

                    // new data connection can be re-established on the new transport. If we leave

                    // the existing data connection in current transport, then DCT and qualified

                    // network service will be out of sync.

                    : DcTracker.RELEASE_TYPE_NORMAL;

                    // network service will be out of sync. Specifying release type to detach

                    // the transport is moved to the other transport, but network request is still

                    // there, connectivity service will not call unwanted to tear down the network.

                    // We need explicitly tear down the data connection here so the new data

                    // connection can be re-established on the other transport.

                    : DcTracker.RELEASE_TYPE_DETACH;

            releaseNetworkInternal(networkRequest, releaseType, originTransport);

            mNetworkRequests.put(networkRequest, targetTransport);

        }