Move ExtensionFunction to the extensions component.

chrome/browser/chromeos/extensions/wallpaper_function_base.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_CHROMEOS_EXTENSIONS_WALLPAPER_FUNCTION_BASE_H_
 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_WALLPAPER_FUNCTION_BASE_H_
 
 #include "ash/desktop_background/desktop_background_controller.h"
-#include "chrome/browser/extensions/extension_function.h"
+#include "extensions/browser/extension_function.h"
 #include "ui/gfx/image/image_skia.h"
 
 namespace wallpaper_api_util {
 ash::WallpaperLayout GetLayoutEnum(const std::string& layout);
 }  // namespace wallpaper_api_util
 
 // Wallpaper manager function base. It contains a image decoder to decode
 // wallpaper data.
 class WallpaperFunctionBase : public AsyncExtensionFunction {
  public:
@@ skipping 15 matching lines @@
   void OnCancel();
 
   // Handles failure case. Sets error message.
   void OnFailure(const std::string& error);
 
  private:
   virtual void OnWallpaperDecoded(const gfx::ImageSkia& wallpaper) = 0;
 };
 
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_WALLPAPER_FUNCTION_BASE_H_