Refactor cros library code into central location and have the UI elements obs...

chrome/browser/chromeos/cros_library.h

+// Copyright (c) 2009 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_CHROMEOS_CROS_LIBRARY_H_
+#define CHROME_BROWSER_CHROMEOS_CROS_LIBRARY_H_
+
+#include "base/basictypes.h"
+
+// This class handles the loading of the ChromeOS shared library.
+class CrosLibrary {
+ public:
+  // Returns true if the ChromeOS library was loaded.
+  // If this is the first time this method is called,
+  // we will attempt to load the ChromeOS shared library.
+  static bool loaded();
+
+ private:
+  CrosLibrary() {}
+  ~CrosLibrary() {}
+
+  static bool loaded_;
+
+  DISALLOW_COPY_AND_ASSIGN(CrosLibrary);
+};
+
+#endif  // CHROME_BROWSER_CHROMEOS_CROS_LIBRARY_H_