Merge "InterfaceConfiguration: Don't use @hide Sets class"

import android.os.Parcel;

import android.os.Parcelable;

import com.google.android.collect.Sets;

import java.util.HashSet;

/**

public class InterfaceConfiguration implements Parcelable {

    private String mHwAddr;

    private LinkAddress mAddr;

    private HashSet<String> mFlags = Sets.newHashSet();

    private HashSet<String> mFlags = new HashSet<>();

    // Must be kept in sync with constant in INetd.aidl

    private static final String FLAG_UP = "up";