Pass command line arguments onto platform apps which provide the right intent.

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

+// Copyright (c) 2012 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.
+
+function onLaunched(launchData) {
+  chrome.test.runTests([
+    function testIntent() {
+      chrome.test.assertFalse(!launchData, "No launchData");
+      chrome.test.assertFalse(!launchData.intent, "No launchData.intent");
+      chrome.test.assertTrue(
+          launchData.intent.action == "http://webintents.org/view",
+          "launchData.intent.action incorrect: " + launchData.intent.action);
+      chrome.test.assertTrue(launchData.intent.type == "text/plain",
+          "launchData.intent.type incorrect: " + launchData.intent.type);
+      chrome.test.assertFalse(!launchData.intent.extra_data,
+          "No launchData.intent.extra_data");
+      chrome.test.assertFalse(!launchData.intent.extra_data.url,
+          "No launchData.intent.extra_data.url");
+      chrome.test.succeed();
+    }
+  ]);
+}
+
+chrome.experimental.app.onLaunched.addListener(onLaunched);