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

chrome/test/data/extensions/platform_apps/document_editor/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.
+
+chrome.test.runTests([
+  function testIntent() {
+    chrome.test.assertFalse(!window.intent, "No window.intent");
+    chrome.test.assertTrue(window.intent.action == "http://webintents.org/view",
+        "window.intent.action incorrect: " + window.intent.action);
+    chrome.test.assertTrue(window.intent.type == "text/plain",
+        "window.intent.type incorrect: " + window.intent.type);
+    var request = new XMLHttpRequest();
+    request.open('GET', window.intent.data, false);
+    request.send(null);
+    chrome.test.assertTrue(request.status === 0,
+        "Invalid request.status: " + request.status);
+    chrome.test.assertTrue(
+        request.responseText.indexOf("This is a test. Word.") == 0,
+        "request.responseText incorrect: " + request.responseText);
+    chrome.test.succeed();
+  }
+]);