Move component updater artifacts into component_updater namespace.

chrome/browser/component_updater/default_component_installer.h

 // Copyright 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_COMPONENT_UPDATER_DEFAULT_COMPONENT_INSTALLER_H_
 #define CHROME_BROWSER_COMPONENT_UPDATER_DEFAULT_COMPONENT_INSTALLER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/version.h"
 #include "chrome/browser/component_updater/component_updater_service.h"
 
 namespace base {
 class DictionaryValue;
 class FilePath;
 }  // namespace base
 
+namespace component_updater {
+
 // Components should use a DefaultComponentInstaller by defining a class that
 // implements the members of ComponentInstallerTraits, and then registering a
 // DefaultComponentInstaller that has been constructed with an instance of that
 // class.
 class ComponentInstallerTraits {
  public:
   virtual ~ComponentInstallerTraits();
 
   // Verifies that a working installation resides within the directory specified
   // by |dir|. |dir| is of the form <base directory>/<version>.
@@ skipping 65 matching lines @@
   void FinishRegistration(ComponentUpdateService* cus);
 
   base::Version current_version_;
   std::string current_fingerprint_;
   scoped_ptr<base::DictionaryValue> current_manifest_;
   scoped_ptr<ComponentInstallerTraits> installer_traits_;
 
   DISALLOW_COPY_AND_ASSIGN(DefaultComponentInstaller);
 };
 
+}  // namespace component_updater
+
 #endif  // CHROME_BROWSER_COMPONENT_UPDATER_DEFAULT_COMPONENT_INSTALLER_H_