Restart running apps when chrome restarts.

chrome/test/data/extensions/platform_apps/restart_test/test.js

Index: chrome/test/data/extensions/platform_apps/restart_test/test.js
diff --git a/chrome/test/data/extensions/platform_apps/browser_tag/test.js b/chrome/test/data/extensions/platform_apps/restart_test/test.js
similarity index 58%
copy from chrome/test/data/extensions/platform_apps/browser_tag/test.js
copy to chrome/test/data/extensions/platform_apps/restart_test/test.js
index 3d6bffa025e94fb420236e37722514cdce3353d1..9bdfada56deacab866487cb4fde4a42d1f378cfa 100644
--- a/chrome/test/data/extensions/platform_apps/browser_tag/test.js
+++ b/chrome/test/data/extensions/platform_apps/restart_test/test.js
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-chrome.app.runtime.onLaunched.addListener(function() {
-  chrome.app.window.create('main.html', {}, function () {});
+chrome.app.runtime.onRestarted.addListener(function (e) {
+  chrome.test.sendMessage("onRestarted");
 });
+
+chrome.test.succeed();