Move ExtensionFunction to the extensions component.

chrome/browser/extensions/api/system_display/system_display_api.h

 // Copyright 2013 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_DISPLAY_SYSTEM_DISPLAY_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SYSTEM_DISPLAY_SYSTEM_DISPLAY_API_H_
 
 #include <string>
 
-#include "chrome/browser/extensions/extension_function.h"
+#include "extensions/browser/extension_function.h"
 
 namespace extensions {
 
 class SystemDisplayGetInfoFunction : public SyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("system.display.getInfo",
                              SYSTEM_DISPLAY_GETINFO);
 
  protected:
   virtual ~SystemDisplayGetInfoFunction() {}
   virtual bool RunImpl() OVERRIDE;
 };
 
 class SystemDisplaySetDisplayPropertiesFunction
     : public SyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("system.display.setDisplayProperties",
                              SYSTEM_DISPLAY_SETDISPLAYPROPERTIES);
 
  protected:
   virtual ~SystemDisplaySetDisplayPropertiesFunction() {}
   virtual bool RunImpl() OVERRIDE;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SYSTEM_DISPLAY_SYSTEM_DISPLAY_API_H_