[CSS Shapes] Add parsing support for gradients

Source/core/rendering/shapes/ShapeOutsideInfo.cpp

 /*
  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 62 matching lines @@
         ASSERT_NOT_REACHED();
         break;
     }
 
     if (m_referenceBoxLogicalSize == newReferenceBoxLogicalSize)
         return;
     markShapeAsDirty();
     m_referenceBoxLogicalSize = newReferenceBoxLogicalSize;
 }
 
-static bool checkShapeImageOrigin(Document& document, ImageResource& imageResource)
+static bool checkShapeImageOrigin(Document& document, const StyleImage& styleImage)
 {
+    if (styleImage.isGeneratedImage())
+        return true;
+
+    ASSERT(styleImage.cachedImage());
+    ImageResource& imageResource = *(styleImage.cachedImage());
     if (imageResource.isAccessAllowed(document.securityOrigin()))
         return true;
 
     const KURL& url = imageResource.url();
     String urlString = url.isNull() ? "''" : url.elidedString();
     document.addConsoleMessage(SecurityMessageSource, ErrorMessageLevel, "Unsafe attempt to load URL " + urlString + ".");
 
     return false;
 }
 
 static void getShapeImageAndRect(const ShapeValue& shapeValue, const RenderBox& renderBox, const LayoutSize& referenceBoxSize, Image*& image, LayoutRect& rect)
 {
     ASSERT(shapeValue.isImageValid());
     StyleImage* styleImage = shapeValue.image();
 
     const IntSize& imageSize = renderBox.calculateImageIntrinsicDimensions(styleImage, roundedIntSize(referenceBoxSize), RenderImage::ScaleByEffectiveZoom);
     styleImage->setContainerSizeForRenderer(&renderBox, imageSize, renderBox.style()->effectiveZoom());
 
-    image = styleImage->cachedImage()->imageForRenderer(&renderBox);
+    image = 0;
+    if (styleImage->isImageResource() || styleImage->isImageResourceSet())
+        image = styleImage->cachedImage()->imageForRenderer(&renderBox);
+    else if (styleImage->isGeneratedImage())
+        image = styleImage->image(const_cast<RenderBox*>(&renderBox), imageSize).get();
+
     if (renderBox.isRenderImage())
         rect = toRenderImage(&renderBox)->replacedContentRect();
     else
         rect = LayoutRect(LayoutPoint(), imageSize);
 }
 
 static LayoutRect getShapeImageMarginRect(const RenderBox& renderBox, const LayoutSize& referenceBoxLogicalSize)
 {
     LayoutPoint marginBoxOrigin(-renderBox.marginLogicalLeft() - renderBox.borderAndPaddingLogicalLeft(), -renderBox.marginBefore() - renderBox.borderBefore() - renderBox.paddingBefore());
     LayoutSize marginBoxSizeDelta(renderBox.marginLogicalWidth() + renderBox.borderAndPaddingLogicalWidth(), renderBox.marginLogicalHeight() + renderBox.borderAndPaddingLogicalHeight());
@@ skipping 142 matching lines @@
 bool ShapeOutsideInfo::isEnabledFor(const RenderBox& box)
 {
     ShapeValue* shapeValue = box.style()->shapeOutside();
     if (!box.isFloating() || !shapeValue)
         return false;
 
     switch (shapeValue->type()) {
     case ShapeValue::Shape:
         return shapeValue->shape();
     case ShapeValue::Image:
-        return shapeValue->isImageValid() && checkShapeImageOrigin(box.document(), *(shapeValue->image()->cachedImage()));
+        return shapeValue->isImageValid() && checkShapeImageOrigin(box.document(), *(shapeValue->image()));
     case ShapeValue::Box:
         return true;
     }
 
     return false;
 }
 
 void ShapeOutsideInfo::updateDeltasForContainingBlockLine(const RenderBlockFlow& containingBlock, const FloatingObject& floatingObject, LayoutUnit lineTop, LayoutUnit lineHeight)
 {
     LayoutUnit borderBoxTop = containingBlock.logicalTopForFloat(&floatingObject) + containingBlock.marginBeforeForChild(&m_renderer);
@@ skipping 24 matching lines @@
         // Lines that do not overlap the shape should act as if the float
         // wasn't there for layout purposes. So we set the deltas to remove the
         // entire width of the float.
         m_leftMarginBoxDelta = floatMarginBoxWidth;
         m_rightMarginBoxDelta = -floatMarginBoxWidth;
         m_lineOverlapsShape = false;
     }
 }
 
 }