Move convolver, image_operations, and skia_utils from base/gfx to skia/ext....

base/gfx/image_operations.h

Index: base/gfx/image_operations.h
===================================================================
--- base/gfx/image_operations.h	(revision 6142)
+++ base/gfx/image_operations.h	(working copy)
@@ -1,63 +0,0 @@
-// Copyright (c) 2006-2008 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 BASE_GFX_IMAGE_OPERATIONS_H__
-#define BASE_GFX_IMAGE_OPERATIONS_H__
-
-#include "base/basictypes.h"
-#include "base/gfx/rect.h"
-
-class SkBitmap;
-
-namespace gfx {
-
-class ImageOperations {
- public:
-  enum ResizeMethod {
-    // Box filter. This is a weighted average of all of the pixels touching
-    // the destination pixel. For enlargement, this is nearest neighbor.
-    //
-    // You probably don't want this, it is here for testing since it is easy to
-    // compute. Use RESIZE_LANCZOS3 instead.
-    RESIZE_BOX,
-
-    // 3-cycle Lanczos filter. This is tall in the middle, goes negative on
-    // each side, then oscillates 2 more times. It gives nice sharp edges.
-    RESIZE_LANCZOS3,
-  };
-
-  // Resizes the given source bitmap using the specified resize method, so that
-  // the entire image is (dest_size) big. The dest_subset is the rectangle in
-  // this destination image that should actually be returned.
-  //
-  // The output image will be (dest_subset.width(), dest_subset.height()). This
-  // will save work if you do not need the entire bitmap.
-  //
-  // The destination subset must be smaller than the destination image.
-  static SkBitmap Resize(const SkBitmap& source,
-                         ResizeMethod method,
-                         const Size& dest_size,
-                         const Rect& dest_subset);
-
-  // Alternate version for resizing and returning the entire bitmap rather than
-  // a subset.
-  static SkBitmap Resize(const SkBitmap& source,
-                         ResizeMethod method,
-                         const Size& dest_size);
-
-
-  // Create a bitmap that is a blend of two others. The alpha argument
-  // specifies the opacity of the second bitmap. The provided bitmaps must
-  // use have the kARGB_8888_Config config and be of equal dimensions.
-  static SkBitmap CreateBlendedBitmap(const SkBitmap& first,
-                                      const SkBitmap& second,
-                                      double alpha);
- private:
-  ImageOperations();  // Class for scoping only.
-};
-
-}  // namespace gfx
-
-#endif  // BASE_GFX_IMAGE_OPERATIONS_H__
-