Add Sky framework support for drawing images

sky/engine/core/painting/CanvasImage.h

+// Copyright 2013 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 SKY_ENGINE_CORE_PAINTING_CANVASIMAGE_H_
+#define SKY_ENGINE_CORE_PAINTING_CANVASIMAGE_H_
+
+#include "sky/engine/core/loader/NewImageLoader.h"
+#include "sky/engine/platform/weborigin/KURL.h"
+#include "sky/engine/tonic/dart_wrappable.h"
+#include "sky/engine/wtf/PassRefPtr.h"
+#include "sky/engine/wtf/text/AtomicString.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+
+namespace blink {
+
+class CanvasImage final : public RefCounted<CanvasImage>, public DartWrappable, public NewImageLoaderClient {
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    ~CanvasImage() override;
+    static PassRefPtr<CanvasImage> create()
+    {
+        return adoptRef(new CanvasImage);
+    }
+
+    int width() const;
+    int height() const;
+
+    KURL src() const { return m_srcURL; }
+    void setSrc(const String&);
+
+    SkBitmap bitmap() const { return m_bitmap; }
+    void setBitmap(const SkBitmap &bitmap) { m_bitmap = bitmap; }

[eseidel, 2015/05/29 22:13:51]

& attaches to the type in both Blink and Chromium styles.

+
+private:
+    CanvasImage();
+
+    // NewImageLoaderClient
+    void notifyLoadFinished(const SkBitmap& result);
+
+    KURL m_srcURL;
+
+    SkBitmap m_bitmap;
+
+    OwnPtr<NewImageLoader> m_imageLoader;
+};
+
+} // namespace blink
+
+#endif  // SKY_ENGINE_CORE_PAINTING_CANVASIMAGE_H_