Use visible path for search documents

Test: atest DocumentsUIGoogleTests
Bug: 155139904

Change-Id: I5454c1cc48e2d4489218b5795c98bd0f9526c6ab

packages/ExternalStorageProvider/src/com/android/externalstorage/ExternalStorageProvider.java

@@ -577,8 +577,11 @@ public class ExternalStorageProvider extends FileSystemProvider {
     public Cursor querySearchDocuments(String rootId, String[] projection, Bundle queryArgs)
             throws FileNotFoundException {
         final File parent;
+
         synchronized (mRootsLock) {
-            parent = mRoots.get(rootId).path;
+            RootInfo root = mRoots.get(rootId);
+            parent = root.visiblePath != null ? root.visiblePath
+                : root.path;
         }
 
         return querySearchDocuments(parent, projection, Collections.emptySet(), queryArgs);