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

base/gfx/skia_utils.h

-// 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_SKIA_UTILS_H__
-#define BASE_GFX_SKIA_UTILS_H__
-
-#include "SkColor.h"
-#include "SkShader.h"
-
-struct SkIRect;
-struct SkPoint;
-struct SkRect;
-typedef unsigned long DWORD;
-typedef DWORD COLORREF;
-typedef struct tagPOINT POINT;
-typedef struct tagRECT RECT;
-
-namespace gfx {
-
-// Converts a Skia point to a Windows POINT.
-POINT SkPointToPOINT(const SkPoint& point);
-
-// Converts a Windows RECT to a Skia rect.
-SkRect RECTToSkRect(const RECT& rect);
-
-// Converts a Windows RECT to a Skia rect.
-// Both use same in-memory format. Verified by COMPILE_ASSERT() in
-// skia_utils.cc.
-inline const SkIRect& RECTToSkIRect(const RECT& rect) {
-  return reinterpret_cast<const SkIRect&>(rect);
-}
-
-// Converts a Skia rect to a Windows RECT.
-// Both use same in-memory format. Verified by COMPILE_ASSERT() in
-// skia_utils.cc.
-inline const RECT& SkIRectToRECT(const SkIRect& rect) {
-  return reinterpret_cast<const RECT&>(rect);
-}
-
-// Creates a vertical gradient shader. The caller owns the shader.
-SkShader* CreateGradientShader(int start_point,
-                               int end_point,
-                               SkColor start_color,
-                               SkColor end_color);
-
-// Converts COLORREFs (0BGR) to the ARGB layout Skia expects.
-SkColor COLORREFToSkColor(COLORREF color);
-
-// Converts ARGB to COLORREFs (0BGR).
-COLORREF SkColorToCOLORREF(SkColor color);
-
-}  // namespace gfx
-
-#endif
-