add a test app using notification provider API

chrome/test/data/extensions/api_test/notification_provider/test_app/manifest.json

Index: chrome/test/data/extensions/api_test/notification_provider/test_app/manifest.json
diff --git a/chrome/test/data/extensions/api_test/notification_provider/test_app/manifest.json b/chrome/test/data/extensions/api_test/notification_provider/test_app/manifest.json
new file mode 100644
index 0000000000000000000000000000000000000000..a56a998eb5439632c1047a1d47a2218cc316b7a8
--- /dev/null
+++ b/chrome/test/data/extensions/api_test/notification_provider/test_app/manifest.json
@@ -0,0 +1,14 @@
+{
+  "name": "New API Notification Provider Test",
+  "description": "Tests the notificationProvider API",
+  "manifest_version" : 2,
+  "version" : "0.3.1",

[Pete Williamson, 2014/08/14 00:07:55]

Just curious - why 0.3.1?

[liyanhou, 2014/08/14 00:41:50]

Sorry I copied it from somewhere else when I first started the file and didn't
know the syntax and format. Changed it to a version number that makes more
sense.

+  "app" : {
+    "background" : {
+    "scripts" : ["app.js"]
+    }
+  },
+  "permissions" : [
+     "notificationProvider"
+  ]
+}