Support asynchronous patching operations in the component updater.

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 OnDemandTester;
 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 177 matching lines @@
 };
 
 // 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_