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

Source/modules/accessibility/AXLayoutObject.cpp

Index: Source/modules/accessibility/AXLayoutObject.cpp
diff --git a/Source/modules/accessibility/AXLayoutObject.cpp b/Source/modules/accessibility/AXLayoutObject.cpp
index 16e243450b44a0f1686784721a40103974eb9097..950b6df17578144b54caaa0257de1cd994e27868 100644
--- a/Source/modules/accessibility/AXLayoutObject.cpp
+++ b/Source/modules/accessibility/AXLayoutObject.cpp
@@ -1954,8 +1954,8 @@ AXObject::AXRange AXLayoutObject::textControlSelection() const
     HTMLTextFormControlElement* textControl = toLayoutTextControl(
         layout)->textFormControlElement();
     ASSERT(textControl);
-    int start = textControl->selectionStart();
-    int end = textControl->selectionEnd();
+    unsigned start = textControl->selectionStart();
+    unsigned end = textControl->selectionEnd();
     return AXRange(axObject, start, axObject, end);
 }