--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/platform/chromium/DragImageChromiumSkia.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2008, 2009, Google Inc. All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "DragImage.h"
+
+#include "Image.h"
+#include "NativeImageSkia.h"
+#include "NotImplemented.h"
+#include "RefPtr.h"
+#include "SkBitmap.h"
+
+#include "skia/ext/image_operations.h"
+
+namespace WebCore {
+
+IntSize dragImageSize(DragImageRef image)
+{
+    if (!image)
+        return IntSize();
+
+    return IntSize(image->width(), image->height());
+}
+
+void deleteDragImage(DragImageRef image)
+{
+    delete image;
+}
+
+DragImageRef scaleDragImage(DragImageRef image, FloatSize scale)
+{
+    if (!image)
+        return 0;
+
+    int imageWidth = scale.width() * image->width();
+    int imageHeight = scale.height() * image->height();
+    DragImageRef scaledImage = new SkBitmap(
+        skia::ImageOperations::Resize(*image, skia::ImageOperations::RESIZE_LANCZOS3,
+                                      imageWidth, imageHeight));
+    delete image;
+    return scaledImage;
+}
+
+DragImageRef dissolveDragImageToFraction(DragImageRef image, float fraction)
+{
+    if (!image)
+        return 0;
+
+    image->setIsOpaque(false);
+    image->lockPixels();
+
+    for (int row = 0; row < image->height(); ++row) {
+        for (int column = 0; column < image->width(); ++column) {
+            uint32_t* pixel = image->getAddr32(column, row);
+            *pixel = SkPreMultiplyARGB(SkColorGetA(*pixel) * fraction,
+                                       SkColorGetR(*pixel),
+                                       SkColorGetG(*pixel),
+                                       SkColorGetB(*pixel));
+        }
+    }
+
+    image->unlockPixels();
+
+    return image;
+}
+
+DragImageRef createDragImageFromImage(Image* image)
+{
+    if (!image)
+        return 0;
+
+    NativeImageSkia* bitmap = image->nativeImageForCurrentFrame();
+    if (!bitmap)
+        return 0;
+
+    SkBitmap* dragImage = new SkBitmap();
+    bitmap->copyTo(dragImage, SkBitmap::kARGB_8888_Config);
+    return dragImage;
+}
+
+DragImageRef createDragImageIconForCachedImage(CachedImage*)
+{
+    notImplemented();
+    return 0;
+}
+
+} // namespace WebCore