[SystemInfo API] Finish TODOs in SystemInfoProvider

chrome/browser/extensions/api/system_info_display/system_info_display_api.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_DISPLAY_SYSTEM_INFO_DISPLAY_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SYSTEM_INFO_DISPLAY_SYSTEM_INFO_DISPLAY_API_H_
 
 #include <string>
 
 #include "chrome/browser/extensions/api/system_info_display/display_info_provider.h"
 #include "chrome/browser/extensions/extension_function.h"
 
 namespace extensions {
 
 class SystemInfoDisplayGetDisplayInfoFunction : public AsyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("systemInfo.display.getDisplayInfo",
                              SYSTEMINFO_DISPLAY_GETDISPLAYINFO);
 
  protected:
   virtual ~SystemInfoDisplayGetDisplayInfoFunction() {}
   virtual bool RunImpl() OVERRIDE;
 
  private:
-  void OnGetDisplayInfoCompleted(const DisplayInfo& info, bool success);
+  void OnGetDisplayInfoCompleted(bool success);
 };
 
 class SystemInfoDisplaySetDisplayPropertiesFunction
     : public AsyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("systemInfo.display.setDisplayProperties",
                              SYSTEMINFO_DISPLAY_SETDISPLAYPROPERTIES);
 
  protected:
   virtual ~SystemInfoDisplaySetDisplayPropertiesFunction() {}
   virtual bool RunImpl() OVERRIDE;
 
  private:
   void OnPropertiesSet(bool success, const std::string& error);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SYSTEM_INFO_DISPLAY_SYSTEM_INFO_DISPLAY_API_H__