Added Tor

ports/tor/background.js

Index: ports/tor/background.js
diff --git a/ports/tor/background.js b/ports/tor/background.js
new file mode 100644
index 0000000000000000000000000000000000000000..a2f63cb99bc4d7ab7eef0479b3ec51b5cd27e528
--- /dev/null
+++ b/ports/tor/background.js
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2015 The Native Client Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+'use strict';
+
+// mount points are defined in naclprocess.js
+// TODO(dt) make sure that datadirectory for tor is set to default for now
+chrome.app.runtime.onLaunched.addListener(function() {
+  chrome.app.window.create('index.html', {
+    'bounds': {
+      'width': 850,
+      'height': 650,
+    },
+  });
+});
+
+chrome.runtime.onSuspend.addListener(function() {
+  // TODO(dt) add code to facilitate graceful exit of tor.
+});