Added asynchronous notification of readiness to the StatisticsProvider, and

chrome/browser/chromeos/system/mock_statistics_provider.h

 // Copyright (c) 2011 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_CHROMEOS_SYSTEM_MOCK_STATISTICS_PROVIDER_H_
 #define CHROME_BROWSER_CHROMEOS_SYSTEM_MOCK_STATISTICS_PROVIDER_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "chrome/browser/chromeos/system/statistics_provider.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace chromeos {
 namespace system {
 
 class MockStatisticsProvider : public system::StatisticsProvider {
  public:
   MockStatisticsProvider();
   virtual ~MockStatisticsProvider();
 
   MOCK_METHOD2(GetMachineStatistic, bool(const std::string& name,
                                          std::string* result));
 
+  MOCK_METHOD1(AddObserver, void(Observer*));
+  MOCK_METHOD1(RemoveObserver, void(Observer*));
+
  private:
   DISALLOW_COPY_AND_ASSIGN(MockStatisticsProvider);
 };
 
 }  // namespace system
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_SYSTEM_MOCK_STATISTICS_PROVIDER_H_