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

chrome/browser/extensions/platform_app_browsertest.cc

 // 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.
 
 #include "base/command_line.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/extensions/extension_host.h"
@@ skipping 178 matching lines @@
 #if defined(USE_AURA)
 // On Aura, this currently fails because the window width is returned as 256
 // instead of 250. See http://crbug.com/119410.
 #define MAYBE_WindowsApi FAILS_WindowsApi
 #else
 #define MAYBE_WindowsApi WindowsApi
 #endif
 IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, MAYBE_WindowsApi) {
   ASSERT_TRUE(RunPlatformAppTest("platform_apps/windows_api")) << message_;
 }
+
+// Tests that command line parameters get passed through to platform apps
+// via window.intent correctly, and that the file names passed through can be
+// read successfully.
+IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, DocumentEditor) {
+  CommandLine* command_line = CommandLine::ForCurrentProcess();
+  FilePath test_doc(test_data_dir_.AppendASCII(
+      "platform_apps/document_editor/test.txt"));
+  command_line->AppendArgPath(test_doc);
+  ASSERT_TRUE(RunPlatformAppTest("platform_apps/document_editor")) << message_;
+}