Reorganize import for all files.

Change-Id: Ia9188bcde727e317e6a476caccaea562f0758b19
diff --git a/src/com/android/gallery3d/data/MtpContext.java b/src/com/android/gallery3d/data/MtpContext.java
index 6528494..ee5cf7e 100644
--- a/src/com/android/gallery3d/data/MtpContext.java
+++ b/src/com/android/gallery3d/data/MtpContext.java
@@ -1,10 +1,6 @@
 package com.android.gallery3d.data;
 
-import com.android.gallery3d.R;
-import com.android.gallery3d.util.GalleryUtils;
-
 import android.content.Context;
-import android.hardware.usb.UsbDevice;
 import android.media.MediaScannerConnection;
 import android.media.MediaScannerConnection.MediaScannerConnectionClient;
 import android.mtp.MtpObjectInfo;
@@ -13,6 +9,9 @@
 import android.util.Log;
 import android.widget.Toast;
 
+import com.android.gallery3d.R;
+import com.android.gallery3d.util.GalleryUtils;
+
 import java.io.File;
 import java.util.ArrayList;
 import java.util.List;