Add user data dir field to Mac platform apps

chrome/app/chrome_main_app_mode_mac.mm

 // 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.
 
 // On Mac, one can't make shortcuts with command-line arguments. Instead, we
 // produce small app bundles which locate the Chromium framework and load it,
 // passing the appropriate data. This is the entry point into the framework for
 // those app bundles.
 
 #include <string>  // TODO(viettrungluu): only needed for temporary hack
@@ skipping 33 matching lines @@
   RAW_CHECK(!chrome_versioned_path->empty());
   chrome::SetOverrideVersionedDirectory(chrome_versioned_path);
 
   base::mac::SetOverrideOuterBundlePath(info->chrome_outer_bundle_path);
   base::mac::SetOverrideFrameworkBundlePath(
       chrome_versioned_path->Append(chrome::kFrameworkName));
 
   // TODO(viettrungluu): do something intelligent with data
   //  return ChromeMain(info->argc, info->argv);
   // For now, a cheesy hack instead.
-  RAW_CHECK(info->app_mode_url.size());
-  std::string argv1(std::string("--app=") + info->app_mode_url);
   RAW_CHECK(info->app_mode_id.size());
-  std::string argv2(std::string("--user-data-dir=/tmp/") + info->app_mode_id);
+  std::string argv1(std::string("--app-id=") + info->app_mode_id);
+  std::string argv2(
+      std::string("--user-data-dir=") + info->user_data_dir.value());
   char* argv[] = { info->argv[0],
                    const_cast<char*>(argv1.c_str()),
                    const_cast<char*>(argv2.c_str()) };
   return ChromeMain(static_cast<int>(arraysize(argv)), argv);
 }