[Extensions] Show a "refresh" bubble when needed with click-to-script

chrome/test/data/extensions/blocked_actions/content_scripts/script.js

Index: chrome/test/data/extensions/blocked_actions/content_scripts/script.js
diff --git a/chrome/test/data/extensions/blocked_actions/content_scripts/script.js b/chrome/test/data/extensions/blocked_actions/content_scripts/script.js
new file mode 100644
index 0000000000000000000000000000000000000000..c54b92cfee01158b92b1dc50845b05290d4cb241
--- /dev/null
+++ b/chrome/test/data/extensions/blocked_actions/content_scripts/script.js
@@ -0,0 +1,9 @@
+// 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.
+
+// If the script was really injected at document_start, then document.body will
+// be null. If it's not null, then we didn't inject at document_start.
+// Store the result in window.localStorage so that it's accessible from the
+// main world script context in the browsertest.
+window.localStorage.setItem('extResult', document.body ? 'failure' : 'success');