Move image_decoder.cc/.h from webkit\glue to content\child.

webkit/glue/image_decoder.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.
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "ui/gfx/size.h"
-#include "webkit/glue/webkit_glue_export.h"
-
-class SkBitmap;
-
-namespace webkit_glue {
-
-// Provides an interface to WebKit's image decoders.
-//
-// Note to future: This class should be deleted. We should have our own nice
-// image decoders in base/gfx, and our port should use those. Currently, it's
-// the other way around.
-class WEBKIT_GLUE_EXPORT ImageDecoder {
- public:
-  // Use the constructor with desired_size when you think you may have an .ico
-  // format and care about which size you get back. Otherwise, use the 0-arg
-  // constructor.
-  ImageDecoder();
-  ImageDecoder(const gfx::Size& desired_icon_size);
-  ~ImageDecoder();
-
-  // Call this function to decode the image. If successful, the decoded image
-  // will be returned. Otherwise, an empty bitmap will be returned.
-  SkBitmap Decode(const unsigned char* data, size_t size) const;
-
-  // Returns all frames found in the image represented by data. If there are
-  // multiple frames at the same size, only the first one is returned.
-  static std::vector<SkBitmap> DecodeAll(
-      const unsigned char* data, size_t size);
-
- private:
-  // Size will be empty to get the largest possible size.
-  gfx::Size desired_icon_size_;
-
-  DISALLOW_COPY_AND_ASSIGN(ImageDecoder);
-};
-
-}  // namespace webkit_glue