Add support for the object-fit CSS property.

Source/core/rendering/style/SVGRenderStyleDefs.h

Index: Source/core/rendering/style/SVGRenderStyleDefs.h
diff --git a/Source/core/rendering/style/SVGRenderStyleDefs.h b/Source/core/rendering/style/SVGRenderStyleDefs.h
index 3cc75ab39213d2213a152d06c24f9fd6af7937bb..9b32f78a578c15f608aa5ca547cd6e1938aa18fd 100644
--- a/Source/core/rendering/style/SVGRenderStyleDefs.h
+++ b/Source/core/rendering/style/SVGRenderStyleDefs.h
@@ -92,6 +92,17 @@ namespace WebCore {
         MT_ALPHA
     };
 
+    enum EPaintOrderType {
+        PT_NONE    = 0,
+        PT_FILL    = 1,
+        PT_STROKE  = 2,
+        PT_MARKERS = 3
+    };
+
+    const int kPaintOrderBitwidth = 2;
+    typedef unsigned EPaintOrder;
+    const unsigned PO_NORMAL = PT_FILL | PT_STROKE << 2 | PT_MARKERS << 4;
+
     class CSSValue;
     class CSSValueList;
     class SVGPaint;