Adds an iOS implementation of gfx::Image.

skia/ext/skia_utils_ios.h

+// Copyright 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 SKIA_EXT_SKIA_UTILS_IOS_H_
+#define SKIA_EXT_SKIA_UTILS_IOS_H_
+
+#include <CoreGraphics/CoreGraphics.h>
+#include <vector>
+
+#include "third_party/skia/include/core/SkBitmap.h"
+
+#ifdef __OBJC__
+@class UIImage;
+#else
+class UIImage;
+#endif
+
+namespace gfx {
+
+// Draws a UIImage with a given size into a SkBitmap.
+SK_API SkBitmap UIImageToSkBitmap(UIImage* image, CGSize size, bool is_opaque);
+
+// Given an SkBitmap and a color space, return an autoreleased UIImage.
+SK_API UIImage* SkBitmapToUIImageWithColorSpace(const SkBitmap& skia_bitmap,
+                                                CGColorSpaceRef color_space);
+
+}  // namespace gfx
+
+#endif  // SKIA_EXT_SKIA_UTILS_IOS_H_