The start and end arguments should be unsigned long in setSelectionRange() function

Source/web/WebAXObject.cpp

Index: Source/web/WebAXObject.cpp
diff --git a/Source/web/WebAXObject.cpp b/Source/web/WebAXObject.cpp
index 6b23eb36d76f3441fdb1596ff8f6a23687faec40..e207deb99417008c24ee2b73eae8c2a5afa44555 100644
--- a/Source/web/WebAXObject.cpp
+++ b/Source/web/WebAXObject.cpp
@@ -853,8 +853,6 @@ unsigned WebAXObject::selectionEnd() const
         return 0;
 
     AXObject::AXRange axSelection = m_private->selectionUnderObject();
-    if (axSelection.focusOffset < 0)
-        return 0;
 
     return axSelection.focusOffset;
 }
@@ -865,8 +863,6 @@ unsigned WebAXObject::selectionStart() const
         return 0;
 
     AXObject::AXRange axSelection = m_private->selectionUnderObject();
-    if (axSelection.anchorOffset < 0)
-        return 0;
 
     return axSelection.anchorOffset;
 }