Merge "Adds Assistant invocation time stamp to ActivityManagerWraper" into rvc-dev

import android.os.Looper;

import android.os.RemoteException;

import android.os.ServiceManager;

import android.os.SystemClock;

import android.os.UserHandle;

import android.provider.Settings;

import android.util.Log;

    public static final String CLOSE_SYSTEM_WINDOWS_REASON_RECENTS = "recentapps";

    public static final String CLOSE_SYSTEM_WINDOWS_REASON_HOME_KEY = "homekey";

    // Should match the value in AssistManager

    private static final String INVOCATION_TIME_MS_KEY = "invocation_time_ms";

    private final PackageManager mPackageManager;

    private final BackgroundExecutor mBackgroundExecutor;

    private final TaskStackChangeListeners mTaskStackChangeListeners;

        if (service == null) {

            return false;

        }

        args.putLong(INVOCATION_TIME_MS_KEY, SystemClock.elapsedRealtime());

        try {

            return service.showSessionFromSession(token, args, flags);

        } catch (RemoteException e) {