Always load signin profile on Chrome OS startup.

chrome/browser/extensions/extension_browsertest.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_BROWSERTEST_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_BROWSERTEST_H_
 
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 279 matching lines @@
 
   // Returns
   // extensions::browsertest_util::ExecuteScriptInBackgroundPageNoWait(
   // profile(), extension_id, script).
   bool ExecuteScriptInBackgroundPageNoWait(const std::string& extension_id,
                                            const std::string& script);
 
   bool loaded_;
   bool installed_;
 
-#if defined(OS_CHROMEOS)
-  // True if the command line should be tweaked as if ChromeOS user is
-  // already logged in.
-  bool set_chromeos_user_;
-#endif
-
   // test_data/extensions.
   base::FilePath test_data_dir_;
 
   scoped_ptr<ExtensionTestNotificationObserver> observer_;
 
  private:
   // Temporary directory for testing.
   base::ScopedTempDir temp_dir_;
 
   // Specifies the type of UI (if any) to show during installation and what
@@ skipping 41 matching lines @@
       override_prompt_for_external_extensions_;
 
   // The default profile to be used.
   Profile* profile_;
 
   // Cache cache implementation.
   scoped_ptr<extensions::ExtensionCacheFake> test_extension_cache_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_BROWSERTEST_H_