[svg2] Make 'x' and 'y' presentation attributes

Source/core/layout/style/SVGLayoutStyleDefs.cpp

Index: Source/core/layout/style/SVGLayoutStyleDefs.cpp
diff --git a/Source/core/layout/style/SVGLayoutStyleDefs.cpp b/Source/core/layout/style/SVGLayoutStyleDefs.cpp
index 4f19c66b6e13ef6b0208c58ad07bb5a5f551db10..8a0bfc441b94bdacef65b62b3fdfd6cc364d2771 100644
--- a/Source/core/layout/style/SVGLayoutStyleDefs.cpp
+++ b/Source/core/layout/style/SVGLayoutStyleDefs.cpp
@@ -26,7 +26,6 @@
 */
 
 #include "config.h"
-
 #include "core/layout/style/SVGLayoutStyleDefs.h"
 
 #include "core/layout/style/SVGLayoutStyle.h"
@@ -201,4 +200,28 @@ bool StyleInheritedResourceData::operator==(const StyleInheritedResourceData& ot
         && markerEnd == other.markerEnd;
 }
 
+StyleLayoutData::StyleLayoutData()
+    : x(SVGLayoutStyle::initialX())
+    , y(SVGLayoutStyle::initialY())
+{
+}
+
+inline StyleLayoutData::StyleLayoutData(const StyleLayoutData& other)
+    : RefCounted<StyleLayoutData>()
+    , x(other.x)
+    , y(other.y)
+{
+}
+
+PassRefPtr<StyleLayoutData> StyleLayoutData::copy() const
+{
+    return adoptRef(new StyleLayoutData(*this));
+}
+
+bool StyleLayoutData::operator==(const StyleLayoutData& other) const
+{
+    return x == other.x
+        && y == other.y;
+}
+
 }