Update SubscriptionManager API as per API council.

import android.telephony.PhoneStateListener;

import android.telephony.ServiceState;

import android.telephony.SignalStrength;

import android.telephony.SubscriptionListener;

import android.telephony.TelephonyManager;

import android.telephony.SubscriptionManager;

import android.content.IntentFilter;

// All methods in this class are not thread safe, donot call them from

// multiple threads. Call them from the HeadsetPhoneStateMachine message

// handler only.

class HeadsetPhoneState extends BroadcastReceiver{

class HeadsetPhoneState {

    private static final String TAG = "HeadsetPhoneState";

    private HeadsetStateMachine mStateMachine;

    private PhoneStateListener mPhoneStateListener = null;

    private final SubscriptionListener mSubscriptionListener = new SubscriptionListener() {

        @Override

        public void onSubscriptionInfoChanged() {

            listenForPhoneState(false);

            listenForPhoneState(true);

        }

    };

    HeadsetPhoneState(Context context, HeadsetStateMachine stateMachine) {

        mStateMachine = stateMachine;

        mTelephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);

        IntentFilter filter = new IntentFilter();

        filter.addAction(TelephonyIntents.ACTION_SUBINFO_RECORD_UPDATED);

        mContext = context;

        mContext.registerReceiver(this, filter);

        // Register for SubscriptionInfo list changes which is guaranteed

        // to invoke onSubscriptionInfoChanged and which in turns calls

        // loadInBackgroud.

        SubscriptionManager.register(mContext, mSubscriptionListener,

                SubscriptionListener.LISTEN_SUBSCRIPTION_INFO_LIST_CHANGED);

    }

    public void cleanup() {

        mContext.unregisterReceiver(this);

        listenForPhoneState(false);

        SubscriptionManager.unregister(mContext, mSubscriptionListener);

        mTelephonyManager = null;

        mStateMachine = null;

    }

    @Override

    public void onReceive(Context context, Intent intent) {

        final String action = intent.getAction();

        Log.d(TAG, "onReceive, intent action = " + action);

        if (action.equals(TelephonyIntents.ACTION_SUBINFO_RECORD_UPDATED)) {

            listenForPhoneState(false);

            listenForPhoneState(true);

        }

    }

    void listenForPhoneState(boolean start) {

        mSlcReady = start;