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diff --git a/chromium/extensions/browser/updater/update_service.h b/chromium/extensions/browser/updater/update_service.h
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index 00000000000..992f55ec4ca
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+++ b/chromium/extensions/browser/updater/update_service.h
@@ -0,0 +1,70 @@
+// 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 EXTENSIONS_BROWSER_UPDATER_UPDATE_SERVICE_H_
+#define EXTENSIONS_BROWSER_UPDATER_UPDATE_SERVICE_H_
+
+#include <string>
+#include <vector>
+
+#include "base/callback.h"
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "components/keyed_service/core/keyed_service.h"
+
+namespace base {
+class Version;
+}
+
+namespace content {
+class BrowserContext;
+}
+
+namespace update_client {
+class UpdateClient;
+}
+
+namespace extensions {
+
+class UpdateDataProvider;
+class UpdateService;
+class UpdateServiceFactory;
+
+// This service manages the autoupdate of extensions.  It should eventually
+// replace ExtensionUpdater in Chrome.
+// TODO(rockot): Replace ExtensionUpdater with this service.
+class UpdateService : public KeyedService {
+ public:
+  static UpdateService* Get(content::BrowserContext* context);
+
+  void Shutdown() override;
+
+  void SendUninstallPing(const std::string& id,
+                         const base::Version& version,
+                         int reason);
+
+  // Starts an update check for each of |extension_ids|. If there are any
+  // updates available, they will be downloaded, checked for integrity,
+  // unpacked, and then passed off to the ExtensionSystem::InstallUpdate method
+  // for install completion.
+  void StartUpdateCheck(std::vector<std::string> extension_ids);
+
+ private:
+  friend class UpdateServiceFactory;
+
+  UpdateService(content::BrowserContext* context,
+                scoped_refptr<update_client::UpdateClient> update_client);
+  ~UpdateService() override;
+
+  content::BrowserContext* context_;
+
+  scoped_refptr<update_client::UpdateClient> update_client_;
+  scoped_refptr<UpdateDataProvider> update_data_provider_;
+
+  DISALLOW_COPY_AND_ASSIGN(UpdateService);
+};
+
+}  // namespace extensions
+
+#endif  // EXTENSIONS_BROWSER_UPDATER_UPDATE_SERVICE_H_