Merge "Add getTotalBytes() to StorageStatsSource" into main

package com.android.settingslib.applications;

import android.annotation.NonNull;

import android.app.usage.StorageStats;

import android.app.usage.StorageStatsManager;

import android.content.Context;

import androidx.annotation.VisibleForTesting;

import java.io.IOException;

import java.util.UUID;

/**

 * StorageStatsSource wraps the StorageStatsManager for testability purposes.

        return mStorageStatsManager.getCacheQuotaBytes(volumeUuid, uid);

    }

    public long getTotalBytes(@NonNull UUID storageUuid) throws IOException {

        return mStorageStatsManager.getTotalBytes(storageUuid);

    }

    /**

     * Static class that provides methods for querying the amount of external storage available as

     * well as breaking it up into several media types.