Move CommandLine to base namespace.

chrome/browser/invalidation/invalidation_service_util.h

 // Copyright (c) 2013 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_INVALIDATION_INVALIDATION_SERVICE_UTIL_H_
 #define CHROME_BROWSER_INVALIDATION_INVALIDATION_SERVICE_UTIL_H_
 
 #include "jingle/notifier/base/notifier_options.h"
 
+namespace base {
 class CommandLine;
+}
 
 namespace invalidation {
 
 // Parses the given command line for notifier options.
-notifier::NotifierOptions ParseNotifierOptions(const CommandLine& command_line);
+notifier::NotifierOptions ParseNotifierOptions(
+    const base::CommandLine& command_line);
 
 // Generates a unique client ID for the invalidator.
 std::string GenerateInvalidatorClientId();
 
 }  // namespace invalidation
 
 #endif  // CHROME_BROWSER_INVALIDATION_INVALIDATION_SERVICE_UTIL_H_