Initial implementation of the <extensionoptions> GuestView tag

chrome/test/data/extensions/api_test/extension_options/embed_self/options.js

+// Copyright 2014 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.
+
+// This script is opened inside a <extensionoptions> guest view. To confirm that
+// is has been successfully created, it adds {pass: true} to every extension
+// Window and broadcasts a message to the extension using runtime.sendMessage().
+var windows = chrome.extension.getViews();
+for (var i = 0; i < windows.length; ++i)
+  windows[i].pass = true;
+chrome.runtime.sendMessage('hi');