Add a generic template for system info provider

chrome/browser/extensions/api/system_info_cpu/cpu_info_provider.h

 // Copyright (c) 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_EXTENSIONS_API_SYSTEM_INFO_CPU_CPU_INFO_PROVIDER_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SYSTEM_INFO_CPU_CPU_INFO_PROVIDER_H_
 
+#include "chrome/browser/extensions/system_info_provider.h"
 #include "chrome/common/extensions/api/experimental_system_info_cpu.h"
 
 namespace extensions {
 
-// An interface for retrieving cpu information on different platforms.
-class CpuInfoProvider {
- public:
-   // Return a CpuInfoProvider instance. The caller is responsible for
-   // releasing it.
-   static CpuInfoProvider* Create();
-
-   virtual ~CpuInfoProvider() {}
-
-   // Return true if succeed to get CPU information, otherwise return false.
-   // Should be implemented on different platforms.
-   virtual bool GetCpuInfo(
-       api::experimental_system_info_cpu::CpuInfo* info) = 0;
-};
+typedef SystemInfoProvider<api::experimental_system_info_cpu::CpuInfo>
+    CpuInfoProvider;
 
 }  // namespace extensions
+
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SYSTEM_INFO_CPU_CPU_INFO_PROVIDER_H_
+