Move State to base and root stuff to roots.

And move Shared to base.
And lots more to base.

Change-Id: I8b01264a329473c13c59f0cd25a320ba73dbd82d
diff --git a/src/com/android/documentsui/dirlist/Model.java b/src/com/android/documentsui/dirlist/Model.java
index 580e6bc..504fdd0 100644
--- a/src/com/android/documentsui/dirlist/Model.java
+++ b/src/com/android/documentsui/dirlist/Model.java
@@ -16,9 +16,9 @@
 
 package com.android.documentsui.dirlist;
 
-import static com.android.documentsui.Shared.DEBUG;
 import static com.android.documentsui.base.DocumentInfo.getCursorLong;
 import static com.android.documentsui.base.DocumentInfo.getCursorString;
+import static com.android.documentsui.base.Shared.DEBUG;
 
 import android.database.Cursor;
 import android.database.MergeCursor;
@@ -31,10 +31,10 @@
 import android.util.Log;
 
 import com.android.documentsui.DirectoryResult;
-import com.android.documentsui.RootCursorWrapper;
-import com.android.documentsui.Shared;
 import com.android.documentsui.base.DocumentInfo;
+import com.android.documentsui.base.Shared;
 import com.android.documentsui.dirlist.MultiSelectManager.Selection;
+import com.android.documentsui.roots.RootCursorWrapper;
 import com.android.documentsui.sorting.SortDimension;
 import com.android.documentsui.sorting.SortModel;