Input type number should return SpinButtonRole from blink to chromium side to expose w correct role.

Source/core/accessibility/AXRenderObject.cpp

Index: Source/core/accessibility/AXRenderObject.cpp
diff --git a/Source/core/accessibility/AXRenderObject.cpp b/Source/core/accessibility/AXRenderObject.cpp
index efe92b306a943aa55dd907236aceae31105bb6f0..f08c360f8b76b5ac18bf1558abff447d59183668 100644
--- a/Source/core/accessibility/AXRenderObject.cpp
+++ b/Source/core/accessibility/AXRenderObject.cpp
@@ -335,6 +335,8 @@ AccessibilityRole AXRenderObject::determineAccessibilityRole()
                 return MenuItemRadioRole;
             return RadioButtonRole;
         }
+        if (type == InputTypeNames::number)
+            return SpinButtonRole;
         if (input.isTextButton())
             return buttonRoleType();
         if (type == InputTypeNames::color)