[CSS Shapes] Remove outside-shape CSS value

Source/core/rendering/style/ShapeValue.h

Index: Source/core/rendering/style/ShapeValue.h
diff --git a/Source/core/rendering/style/ShapeValue.h b/Source/core/rendering/style/ShapeValue.h
index 8590fc244758c43aae640034e1b91b1ef53727ad..8115046b616dca927b41468686eea84387c7b738 100644
--- a/Source/core/rendering/style/ShapeValue.h
+++ b/Source/core/rendering/style/ShapeValue.h
@@ -44,7 +44,6 @@ public:
         // The Auto value is defined by a null ShapeValue*
         Shape,
         Box,
-        Outside,
         Image
     };
 
@@ -53,11 +52,6 @@ public:
         return adoptRef(new ShapeValue(shape, cssBox));
     }
 
-    static PassRefPtr<ShapeValue> createOutsideValue()
-    {
-        return adoptRef(new ShapeValue(Outside));
-    }
-
     static PassRefPtr<ShapeValue> createBoxShapeValue(CSSBoxType cssBox)
     {
         return adoptRef(new ShapeValue(cssBox));
@@ -124,8 +118,6 @@ inline bool ShapeValue::operator==(const ShapeValue& other) const
         return shape() == other.shape() && cssBox() == other.cssBox();
     case Box:
         return cssBox() == other.cssBox();
-    case Outside:
-        return true;
     case Image:
         return image() == other.image();
     }