[Extensions Bindings] Add a messaging test

chrome/test/data/extensions/api_test/native_bindings/manifest.json

Index: chrome/test/data/extensions/api_test/native_bindings/manifest.json
diff --git a/chrome/test/data/extensions/api_test/native_bindings/manifest.json b/chrome/test/data/extensions/api_test/native_bindings/manifest.json
index ba356ae397cd3c7e688d17de7fbd89b41d2d209a..5e2d2c0b2450e816c4f0a35ac36c73a2678f8ae3 100644
--- a/chrome/test/data/extensions/api_test/native_bindings/manifest.json
+++ b/chrome/test/data/extensions/api_test/native_bindings/manifest.json
@@ -3,9 +3,13 @@
   "description": "A simple e2e test for native bindings",
   "manifest_version": 2,
   "version": "0.1",
-  "permissions": ["idle"],
+  "permissions": ["idle", "tabs"],
   "background": {
     "persistent": false,
     "page": "background.html"
-  }
+  },
+  "content_scripts": [{
+    "matches": ["*://*/*messaging_test.html"],
+    "js": ["content_script.js"]
+  }]
 }