Merge "Replace KeyguardStateControllerImpl ArrayList w/ ConcurrentHashMap" into main

import com.android.systemui.dump.DumpManager;

import com.android.systemui.flags.FeatureFlags;

import com.android.systemui.keyguard.KeyguardUnlockAnimationController;

import com.android.systemui.log.core.LogLevel;

import com.android.systemui.res.R;

import com.android.systemui.user.domain.interactor.SelectedUserInteractor;

import dagger.Lazy;

import java.io.PrintWriter;

import java.util.ArrayList;

import java.util.Objects;

import java.util.concurrent.ConcurrentHashMap;

import java.util.function.Consumer;

import javax.inject.Inject;

    private static final boolean DEBUG_AUTH_WITH_ADB = false;

    private static final String AUTH_BROADCAST_KEY = "debug_trigger_auth";

    private final ArrayList<Callback> mCallbacks = new ArrayList<>();

    private final ConcurrentHashMap.KeySetView<Callback, Boolean> mCallbacks =

            ConcurrentHashMap.<Callback>newKeySet();

    private final Context mContext;

    private final KeyguardUpdateMonitor mKeyguardUpdateMonitor;

    private final LockPatternUtils mLockPatternUtils;

    @Override

    public void addCallback(@NonNull Callback callback) {

        Objects.requireNonNull(callback, "Callback must not be null. b/128895449");

        if (!mCallbacks.contains(callback)) {

        mCallbacks.add(callback);

    }

    }

    @Override

    public void removeCallback(@NonNull Callback callback) {

    }

    private void invokeForEachCallback(Consumer<Callback> consumer) {

        // Copy the list to allow removal during callback.

        ArrayList<Callback> copyOfCallbacks = new ArrayList<>(mCallbacks);

        for (int i = 0; i < copyOfCallbacks.size(); i++) {

            Callback callback = copyOfCallbacks.get(i);

            // Temporary fix for b/315731775, callback is null even though only non-null callbacks

            // are added to the list by addCallback

            if (callback != null) {

                consumer.accept(callback);

            } else {

                mLogger.log("KeyguardStateController callback is null", LogLevel.DEBUG);

            }

        }

        mCallbacks.forEach(consumer);

    }

    private void notifyUnlockedChanged() {