Merge "Greylist IActivityTaskManagerSingleton."

import android.annotation.RequiresPermission;

import android.annotation.SystemService;

import android.annotation.TestApi;

import android.annotation.UnsupportedAppUsage;

import android.content.Context;

import android.content.pm.PackageManager;

import android.content.res.Resources;

        return IActivityTaskManagerSingleton.get();

    }

    @UnsupportedAppUsage(trackingBug = 129726065)

    private static final Singleton<IActivityTaskManager> IActivityTaskManagerSingleton =

            new Singleton<IActivityTaskManager>() {

                @Override