Add a callback parameter to UpdateClient::SendUninstallPing.

components/update_client/update_client_internal.h

 // Copyright 2015 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_UPDATE_CLIENT_UPDATE_CLIENT_INTERNAL_H_
 #define COMPONENTS_UPDATE_CLIENT_UPDATE_CLIENT_INTERNAL_H_
 
 #include <memory>
 #include <queue>
 #include <set>
@@ skipping 31 matching lines @@
                const Callback& callback) override;
   void Update(const std::vector<std::string>& ids,
               const CrxDataCallback& crx_data_callback,
               const Callback& callback) override;
   bool GetCrxUpdateState(const std::string& id,
                          CrxUpdateItem* update_item) const override;
   bool IsUpdating(const std::string& id) const override;
   void Stop() override;
   void SendUninstallPing(const std::string& id,
                          const base::Version& version,
-                         int reason) override;
+                         int reason,
+                         const Callback& callback) override;
 
  private:
   ~UpdateClientImpl() override;
 
   void RunTask(std::unique_ptr<Task> task);
   void OnTaskComplete(const Callback& callback, Task* task, Error error);
 
   void NotifyObservers(Observer::Events event, const std::string& id);
 
   base::ThreadChecker thread_checker_;
@@ skipping 21 matching lines @@
   std::unique_ptr<UpdateEngine> update_engine_;
 
   base::ObserverList<Observer> observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(UpdateClientImpl);
 };
 
 }  // namespace update_client
 
 #endif  // COMPONENTS_UPDATE_CLIENT_UPDATE_CLIENT_INTERNAL_H_