Implement remaining SkBitmapOperations as ImageSkiaOperations

ui/gfx/image/image_skia.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 UI_GFX_IMAGE_IMAGE_SKIA_H_
 #define UI_GFX_IMAGE_IMAGE_SKIA_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 82 matching lines @@
 
   // Returns true if this is a null object.
   // TODO(pkotwicz): Merge this function into empty().
   bool isNull() const { return storage_ == NULL; }
 
   // Width and height of image in DIP coordinate system.
   int width() const;
   int height() const;
   gfx::Size size() const;
 
-  // Operates on each stored image rep. Note that it may not have
-  // all image reps for supported scale factors.
-  // TODO(oshima|pkotwicz): Investigate if this can be eliminated
-  // after ImageSkiaSource conversion.
+  // Wrapper function for SkBitmap::extractBitmap.
+  // Deprecated, use ImageSkiaOperations::ExtractSubset instead.
+  // TODO(pkotwicz): Remove this function.
   bool extractSubset(ImageSkia* dst, const SkIRect& subset) const;
 
   // Returns pointer to 1x bitmap contained by this object. If there is no 1x
   // bitmap, the bitmap whose scale factor is closest bitmap to 1x is returned.
   // This function should only be used in unittests and on platforms which do
   // not support scale factors other than 1x.
   // TODO(pkotwicz): Return null SkBitmap when the object has no 1x bitmap.
   const SkBitmap* bitmap() const;
 
   // Returns a vector with the image reps contained in this object.
   // There is no guarantee that this will return all images rep for
   // supported scale factors.
   // TODO(oshima): Update all use of this API and make this to fail
   // when source is used.
   std::vector<gfx::ImageSkiaRep> image_reps() const;
 
  private:
   // Initialize ImageSkiaStorage with passed in parameters.
   // If the image rep's bitmap is empty, ImageStorage is set to NULL.
   void Init(const gfx::ImageSkiaRep& image_rep);
 
   // A refptr so that ImageRepSkia can be copied cheaply.
   scoped_refptr<internal::ImageSkiaStorage> storage_;
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_IMAGE_IMAGE_SKIA_H_