Move most of the component updater artifacts to update_client.

components/update_client/ping_manager.h

 // Copyright 2014 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 COMPONENTS_COMPONENT_UPDATER_COMPONENT_UPDATER_PING_MANAGER_H_
-#define COMPONENTS_COMPONENT_UPDATER_COMPONENT_UPDATER_PING_MANAGER_H_
+#ifndef COMPONENTS_UPDATE_CLIENT_PING_MANAGER_H_
+#define COMPONENTS_UPDATE_CLIENT_PING_MANAGER_H_
 
 #include "base/macros.h"
 
-namespace component_updater {
+namespace update_client {
 
 class Configurator;
 struct CrxUpdateItem;
 
 // Provides an event sink for completion events from ComponentUpdateService
 // and sends fire-and-forget pings when handling these events.
 class PingManager {
  public:
   explicit PingManager(const Configurator& config);
   ~PingManager();
 
   void OnUpdateComplete(const CrxUpdateItem* item);
 
  private:
   const Configurator& config_;
 
   DISALLOW_COPY_AND_ASSIGN(PingManager);
 };
 
-}  // namespace component_updater
+}  // namespace update_client
 
-#endif  // COMPONENTS_COMPONENT_UPDATER_COMPONENT_UPDATER_PING_MANAGER_H_
+#endif  // COMPONENTS_UPDATE_CLIENT_PING_MANAGER_H_