Re-enable an IndexedDB test that used to crash on Android.

content/test/data/indexeddb/cursor_prefetch.js

Index: content/test/data/indexeddb/cursor_prefetch.js
diff --git a/content/test/data/indexeddb/cursor_prefetch.js b/content/test/data/indexeddb/cursor_prefetch.js
index ff9c7e1e25b4b1b51c45ba3798ba5dc7e118584c..076e6a9598fd3b2d7c9d3280d8767c894bff25f9 100644
--- a/content/test/data/indexeddb/cursor_prefetch.js
+++ b/content/test/data/indexeddb/cursor_prefetch.js
@@ -2,8 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// These constants should match the ones in renderer_webidbcursor_impl.h
-// to make sure the test hits the right code paths.
+// These constants should match the ones in
+// content/child/indexed_db/webidbcursor_impl.h to make sure the test hits the
+// right code paths.
 var kPrefetchThreshold = 2;
 var kMinPrefetchAmount = 5;