Move ExtensionCreator into extensions namespace

chrome/browser/extensions/extension_creator.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_CREATOR_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_CREATOR_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 
 namespace crypto {
 class RSAPrivateKey;
 }
 
 class FilePath;
 
+namespace extensions {
+
 // This class create an installable extension (.crx file) given an input
 // directory that contains a valid manifest.json and the extension's resources
 // contained within that directory. The output .crx file is always signed with a
 // private key that is either provided in |private_key_path| or is internal
 // generated randomly (and optionally written to |output_private_key_path|.
 class ExtensionCreator {
  public:
   ExtensionCreator();
 
   // Settings to specify treatment of special or ignorable error conditions.
@@ skipping 58 matching lines @@
 
   // Holds a message for any error that is raised during Run(...).
   std::string error_message_;
 
   // Type of error that was raised, if any.
   ErrorType error_type_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionCreator);
 };
 
+}  // namespace extensions
+
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_CREATOR_H_