Revert 148272 - Refactor the wallpaper encoding to another file/class.

chrome/browser/ui/webui/options2/chromeos/simple_png_encoder.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_UI_WEBUI_OPTIONS2_CHROMEOS_SIMPLE_PNG_ENCODER_H_
-#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_SIMPLE_PNG_ENCODER_H_
-
-#include "base/callback.h"
-#include "base/compiler_specific.h"
-#include "base/memory/ref_counted_memory.h"
-#include "base/synchronization/cancellation_flag.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-
-namespace chromeos {
-
-typedef base::Callback<void(
-    scoped_refptr<base::RefCountedBytes>)> EncoderCallback;
-
-// Operation class that encodes existing in-memory image as PNG.
-// It uses NO-COMPRESSION to save time.
-class SimplePngEncoder
-    : public base::RefCountedThreadSafe<SimplePngEncoder> {
- public:
-  SimplePngEncoder(scoped_refptr<base::RefCountedBytes> data,
-                   SkBitmap image,
-                   base::Closure cancel_callback);
-
-  void Run(EncoderCallback callback);
-
-  void EncodeWallpaper();
-  void Cancel();
-
- private:
-  friend class base::RefCountedThreadSafe<SimplePngEncoder>;
-
-  ~SimplePngEncoder();
-
-  base::CancellationFlag cancel_flag_;
-
-  // Buffer to store encoded image.
-  scoped_refptr<base::RefCountedBytes> data_;
-  // Original image to encode.
-  SkBitmap image_;
-  base::Closure cancel_callback_;
-
-  DISALLOW_COPY_AND_ASSIGN(SimplePngEncoder);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_SIMPLE_PNG_ENCODER_H_