Add callback for atom for MTE state

/*

 * Copyright (C) 2023 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.server;

import android.app.StatsManager;

import android.content.Context;

import android.util.StatsEvent;

import com.android.internal.os.BackgroundThread;

import com.android.internal.os.Zygote;

import com.android.internal.util.FrameworkStatsLog;

import java.util.List;

public class LogMteState {

    public static void register(Context context) {

        context.getSystemService(StatsManager.class)

                .setPullAtomCallback(

                        FrameworkStatsLog.MTE_STATE,

                        null, // use default PullAtomMetadata values

                        BackgroundThread.getExecutor(),

                        new StatsManager.StatsPullAtomCallback() {

                            @Override

                            public int onPullAtom(int atomTag, List<StatsEvent> data) {

                                if (atomTag != FrameworkStatsLog.MTE_STATE) {

                                    throw new UnsupportedOperationException(

                                            "Unknown tagId=" + atomTag);

                                }

                                data.add(

                                        FrameworkStatsLog.buildStatsEvent(

                                                FrameworkStatsLog.MTE_STATE,

                                                Zygote.nativeSupportsMemoryTagging()

                                                        ? FrameworkStatsLog.MTE_STATE__STATE__ON

                                                        : FrameworkStatsLog.MTE_STATE__STATE__OFF));

                                return StatsManager.PULL_SUCCESS;

                            }

                        });

    }

}

        }

        t.traceEnd();

        t.traceBegin("RegisterLogMteState");

        try {

            LogMteState.register(context);

        } catch (Throwable e) {

            reportWtf("RegisterLogMteState", e);

        }

        t.traceEnd();

        // Emit any pending system_server WTFs

        synchronized (SystemService.class) {

            if (sPendingWtfs != null) {