[CSS Exclusions] Add CSS parsing support for image URI shape-inside and shape-outside values

Source/core/rendering/style/ExclusionShapeValue.h

 /*
  * 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 13 matching lines @@
  * 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.
  */
 
 #ifndef ExclusionShapeValue_h
 #define ExclusionShapeValue_h
 
 #include "core/rendering/style/BasicShapes.h"
-#include <wtf/PassRefPtr.h>
+#include "core/rendering/style/StyleImage.h"
+#include "wtf/PassRefPtr.h"
 
 namespace WebCore {
 
 class ExclusionShapeValue : public RefCounted<ExclusionShapeValue> {
 public:
     enum ExclusionShapeValueType {
-        // The AUTO value is defined by a null ExclusionShapeValue*
-        SHAPE,
-        OUTSIDE
+        // The Auto value is defined by a null ExclusionShapeValue*
+        Shape,
+        Outside,
+        Image
     };
 
     static PassRefPtr<ExclusionShapeValue> createShapeValue(PassRefPtr<BasicShape> shape)
     {
         return adoptRef(new ExclusionShapeValue(shape));
     }
 
     static PassRefPtr<ExclusionShapeValue> createOutsideValue()
     {
-        return adoptRef(new ExclusionShapeValue(OUTSIDE));
+        return adoptRef(new ExclusionShapeValue(Outside));
+    }
+
+    static PassRefPtr<ExclusionShapeValue> createImageValue(PassRefPtr<StyleImage> image)
+    {
+        return adoptRef(new ExclusionShapeValue(image));
     }
 
     ExclusionShapeValueType type() const { return m_type; }
     BasicShape* shape() const { return m_shape.get(); }
+    StyleImage* image() const { return m_image.get(); }
+    void setImage(PassRefPtr<StyleImage> image)
+    {
+        if (m_image != image)

[eseidel, 2013/06/04 18:10:36]

Why bother avoiding?

+            m_image = image;
+    }
     bool operator==(const ExclusionShapeValue& other) const { return type() == other.type(); }
 
 private:
-    ExclusionShapeValue(PassRefPtr<BasicShape> shape) : m_type(SHAPE), m_shape(shape) { }
-    ExclusionShapeValue(ExclusionShapeValueType type) : m_type(type) { }
+    ExclusionShapeValue(PassRefPtr<BasicShape> shape)
+        : m_type(Shape)
+        , m_shape(shape)
+    {
+    }
+    ExclusionShapeValue(ExclusionShapeValueType type)
+        : m_type(type)
+    {
+    }
+    ExclusionShapeValue(PassRefPtr<StyleImage> image)
+        : m_type(Image)
+        , m_image(image)
+    {
+    }
     ExclusionShapeValueType m_type;
     RefPtr<BasicShape> m_shape;
+    RefPtr<StyleImage> m_image;
 };
 
 }
 
 #endif