Allowing ability to create directory in Downloads.

Test: Smoked test.
Bug: 35157759
Change-Id: I27248f2f7bfaa0be6e5e6bf39da18b71d66ee9e7
(cherry picked from commit 8791cc4236d949fafa5e457da5981970c894cc2a)
diff --git a/src/com/android/documentsui/BaseActivity.java b/src/com/android/documentsui/BaseActivity.java
index 305e0d7..1480e25 100644
--- a/src/com/android/documentsui/BaseActivity.java
+++ b/src/com/android/documentsui/BaseActivity.java
@@ -368,8 +368,7 @@
         return cwd != null
                 && cwd.isCreateSupported()
                 && !mSearchManager.isSearching()
-                && !root.isRecents()
-                && !root.isDownloads();
+                && !root.isRecents();
     }
 
     // TODO: make navigator listen to state