Merge 143454

Source/WebCore/svg/properties/SVGPathSegListPropertyTearOff.h

Index: Source/WebCore/svg/properties/SVGPathSegListPropertyTearOff.h
===================================================================
--- Source/WebCore/svg/properties/SVGPathSegListPropertyTearOff.h	(revision 144107)
+++ Source/WebCore/svg/properties/SVGPathSegListPropertyTearOff.h	(working copy)
@@ -75,6 +75,7 @@
             return 0;
         }
 
+        clearContextAndRoles();
         ListItemType newItem = passNewItem;
         return Base::initializeValues(newItem, ec);
     }
@@ -93,18 +94,8 @@
         return Base::insertItemBeforeValues(newItem, index, ec);
     }
 
-    PassListItemType replaceItem(PassListItemType passNewItem, unsigned index, ExceptionCode& ec)
-    {
-        // Not specified, but FF/Opera do it this way, and it's just sane.
-        if (!passNewItem) {
-            ec = SVGException::SVG_WRONG_TYPE_ERR;
-            return 0;
-        }
+    PassListItemType replaceItem(PassListItemType, unsigned index, ExceptionCode&);
 
-        ListItemType newItem = passNewItem;
-        return Base::replaceItemValues(newItem, index, ec);
-    }
-
     PassListItemType removeItem(unsigned index, ExceptionCode&);
 
     PassListItemType appendItem(PassListItemType passNewItem, ExceptionCode& ec)
@@ -129,6 +120,8 @@
 
     SVGPathElement* contextElement() const;
 
+    void clearContextAndRoles();
+
     using Base::m_role;
 
     virtual bool isReadOnly() const