Index: tracing/tracing/ui/base/polymer_preload.html |
diff --git a/tracing/tracing/ui/base/polymer_preload.html b/tracing/tracing/ui/base/polymer_preload.html |
new file mode 100644 |
index 0000000000000000000000000000000000000000..8860b5befecfd08c1efda82f731a3f3c7fa3a4bb |
--- /dev/null |
+++ b/tracing/tracing/ui/base/polymer_preload.html |
@@ -0,0 +1,15 @@ |
+<!DOCTYPE html> |
+<!-- |
+Copyright 2016 The Chromium Authors. All rights reserved. |
+Use of this source code is governed by a BSD-style license that can be |
+found in the LICENSE file. |
+--> |
+<script> |
+'use strict'; |
+ |
+// Force Polymer into native shadowDom mode |
+if (window.Polymer) |
+ throw new Error('Cannot proceed. Polymer already present.'); |
+window.Polymer = {}; |
+window.Polymer.dom = 'shadow'; |
+</script> |