Add ability to change display settings to chrome.systemInfo.display

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);
 };
 
+class SystemInfoDisplaySetDisplayUnitInfoFunction
+    : public AsyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("systemInfo.display.setDisplayUnitInfo",
+                             SYSTEMINFO_DISPLAY_SETDISPLAYUNITINFO);
+
+ protected:
+  virtual ~SystemInfoDisplaySetDisplayUnitInfoFunction() {}
+  virtual bool RunImpl() OVERRIDE;
+
+ private:
+  void OnSetDisplayUnitInfo(bool success, const std::string& error);
+};
+
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SYSTEM_INFO_DISPLAY_SYSTEM_INFO_DISPLAY_API_H__