Merge "Use buffered output during packages.xml write" into gingerbread

import android.view.Display;

import android.view.WindowManager;

import java.io.BufferedOutputStream;

import java.io.File;

import java.io.FileDescriptor;

import java.io.FileInputStream;

            mPastSignatures.clear();

            try {

                FileOutputStream str = new FileOutputStream(mSettingsFilename);

                BufferedOutputStream str = new BufferedOutputStream(new FileOutputStream(

                        mSettingsFilename));

                //XmlSerializer serializer = XmlUtils.serializerInstance();

                XmlSerializer serializer = new FastXmlSerializer();

                File tempFile = new File(mPackageListFilename.toString() + ".tmp");

                JournaledFile journal = new JournaledFile(mPackageListFilename, tempFile);

                str = new FileOutputStream(journal.chooseForWrite());

                str = new BufferedOutputStream(new FileOutputStream(journal.chooseForWrite()));

                try {

                    StringBuilder sb = new StringBuilder();

                    for (PackageSetting pkg : mPackages.values()) {