Move chromeos code to namespace chromeos.

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"
 
+namespace chromeos {
+
 // 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);
 };
 
+}  // namespace chromeos
+
 #endif  // CHROME_BROWSER_CHROMEOS_CROS_LIBRARY_H_