Move component updater artifacts into component_updater namespace.

chrome/browser/component_updater/component_updater_service.h

 // Copyright 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_COMPONENT_UPDATER_COMPONENT_UPDATER_SERVICE_H_
 #define CHROME_BROWSER_COMPONENT_UPDATER_COMPONENT_UPDATER_SERVICE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/version.h"
 #include "url/gurl.h"
 
+class ComponentsUI;
+
 namespace base {
 class DictionaryValue;
 class FilePath;
 }
 
 namespace net {
 class URLRequestContextGetter;
 class URLRequest;
 }
 
 namespace component_updater {
 class OnDemandTester;
 }
 
 namespace content {
 class ResourceThrottle;
 }
 
+namespace component_updater {
+
 class ComponentPatcher;
 
 // Component specific installers must derive from this class and implement
 // OnUpdateError() and Install(). A valid instance of this class must be
 // given to ComponentUpdateService::RegisterComponent().
 class ComponentInstaller {
  public :
   // Called by the component updater on the UI thread when there was a
   // problem unpacking or verifying the component. |error| is a non-zero
   // value which is only meaningful to the component updater.
@@ skipping 156 matching lines @@
   virtual void GetComponents(std::vector<CrxComponentInfo>* components) = 0;
 
   // Returns a network resource throttle. It means that a component will be
   // downloaded and installed before the resource is unthrottled. This is the
   // only function callable from the IO thread.
   virtual content::ResourceThrottle* GetOnDemandResourceThrottle(
       net::URLRequest* request, const std::string& crx_id) = 0;
 
   virtual ~ComponentUpdateService() {}
 
-  friend class ComponentsUI;
-  friend class component_updater::OnDemandTester;
+  friend class ::ComponentsUI;
+  friend class OnDemandTester;
 
  private:
   // Ask the component updater to do an update check for a previously
   // registered component, immediately. If an update or check is already
   // in progress, returns |kInProgress|.
   // There is no guarantee that the item will actually be updated,
   // since an update may not be available. Listeners for the component will
   // know the outcome of the check.
   virtual Status OnDemandUpdate(const std::string& component_id) = 0;
 };
 
 // Creates the component updater. You must pass a valid |config| allocated on
 // the heap which the component updater will own.
 ComponentUpdateService* ComponentUpdateServiceFactory(
     ComponentUpdateService::Configurator* config);
 
+}  // namespace component_updater
+
 #endif  // CHROME_BROWSER_COMPONENT_UPDATER_COMPONENT_UPDATER_SERVICE_H_