clean up gigaget code

app/src/main/java/us/shandian/giga/get/FilteredDownloadManagerWrapper.java

@@ -1,88 +0,0 @@
-package us.shandian.giga.get;
-
-import android.content.Context;
-
-import java.util.Map.Entry;
-import java.util.HashMap;
-
-public class FilteredDownloadManagerWrapper implements DownloadManager
-{
-
-	private boolean mDownloaded = false; // T=Filter downloaded files; F=Filter downloading files
-	private DownloadManager mManager;
-	private HashMap<Integer, Integer> mElementsMap = new HashMap<Integer, Integer>();
-	
-	public FilteredDownloadManagerWrapper(DownloadManager manager, boolean filterDownloaded) {
-		mManager = manager;
-		mDownloaded = filterDownloaded;
-		refreshMap();
-	}
-	
-	private void refreshMap() {
-		mElementsMap.clear();
-		
-		int size = 0;
-		for (int i = 0; i < mManager.getCount(); i++) {
-			if (mManager.getMission(i).finished == mDownloaded) {
-				mElementsMap.put(size++, i);
-			}
-		}
-	}
-	
-	private int toRealPosition(int pos) {
-		if (mElementsMap.containsKey(pos)) {
-			return mElementsMap.get(pos);
-		} else {
-			return -1;
-		}
-	}
-	
-	private int toFakePosition(int pos) {
-		for (Entry<Integer, Integer> entry : mElementsMap.entrySet()) {
-			if (entry.getValue() == pos) {
-				return entry.getKey();
-			}
-		}
-		
-		return -1;
-	}
-
-	@Override
-	public int startMission(String url, String name, int threads) {
-		int ret = mManager.startMission(url, name, threads);
-		refreshMap();
-		return toFakePosition(ret);
-	}
-
-	@Override
-	public void resumeMission(int id) {
-		mManager.resumeMission(toRealPosition(id));
-	}
-
-	@Override
-	public void pauseMission(int id) {
-		mManager.pauseMission(toRealPosition(id));
-	}
-
-	@Override
-	public void deleteMission(int id) {
-		mManager.deleteMission(toRealPosition(id));
-	}
-
-	@Override
-	public DownloadMission getMission(int id) {
-		return mManager.getMission(toRealPosition(id));
-	}
-	
-
-	@Override
-	public int getCount() {
-		return mElementsMap.size();
-	}
-
-	@Override
-	public String getLocation() {
-		return mManager.getLocation();
-	}
-	
-}