Move ui/gfx/codec/ into its own component.

ui/gfx/chromeos/codec/jpeg_codec_robust_slow.h

-// Copyright 2015 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 UI_GFX_CHROMEOS_CODEC_JPEG_CODEC_ROBUST_SLOW_H_
-#define UI_GFX_CHROMEOS_CODEC_JPEG_CODEC_ROBUST_SLOW_H_
-
-#include <stddef.h>
-#include <vector>
-
-#include "ui/gfx/gfx_export.h"
-
-class SkBitmap;
-
-namespace gfx {
-
-// Interface for encoding/decoding JPEG data. This is a wrapper around libjpeg,
-// which has an inconvenient interface for callers. This is only used for
-// servicing ChromeUtilityMsg_RobustJPEGDecodeImage and is currently unique
-// to Chrome OS.
-class GFX_EXPORT JPEGCodecRobustSlow {
- public:
-  enum ColorFormat {
-    // 3 bytes per pixel (packed), in RGB order regardless of endianness.
-    // This is the native JPEG format.
-    FORMAT_RGB,
-
-    // 4 bytes per pixel, in RGBA order in mem regardless of endianness.
-    FORMAT_RGBA,
-
-    // 4 bytes per pixel, in BGRA order in mem regardless of endianness.
-    // This is the default Windows DIB order.
-    FORMAT_BGRA,
-
-    // 4 bytes per pixel, it can be either RGBA or BGRA. It depends on the bit
-    // order in kARGB_8888_Config skia bitmap.
-    FORMAT_SkBitmap
-  };
-
-  // Decodes the JPEG data contained in input of length input_size. The
-  // decoded data will be placed in *output with the dimensions in *w and *h
-  // on success (returns true). This data will be written in the'format'
-  // format. On failure, the values of these output variables is undefined.
-  static bool Decode(const unsigned char* input, size_t input_size,
-                     ColorFormat format, std::vector<unsigned char>* output,
-                     int* w, int* h);
-
-  // Decodes the JPEG data contained in input of length input_size. If
-  // successful, a SkBitmap is created and returned. It is up to the caller
-  // to delete the returned bitmap.
-  static SkBitmap* Decode(const unsigned char* input, size_t input_size);
-};
-
-}  // namespace gfx
-
-#endif  // UI_GFX_CHROMEOS_CODEC_JPEG_CODEC_ROBUST_SLOW_H_