Changing slider values do not work properly when percent change of a step is less than one.

Source/modules/accessibility/AXObject.h

 /*
  * Copyright (C) 2008, 2009, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nuanti Ltd.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 368 matching lines @@
     virtual bool isNativeSpinButton() const { return false; }
     virtual bool isNativeTextControl() const { return false; } // input or textarea
     virtual bool isNonNativeTextControl() const { return false; } // contenteditable or role=textbox
     virtual bool isPasswordField() const { return false; }
     virtual bool isPasswordFieldAndShouldHideValue() const;
     bool isPresentational() const { return roleValue() == NoneRole || roleValue() == PresentationalRole; }
     virtual bool isProgressIndicator() const { return false; }
     bool isRadioButton() const { return roleValue() == RadioButtonRole; }
     bool isScrollbar() const { return roleValue() == ScrollBarRole; }
     virtual bool isSlider() const { return false; }
+    virtual bool isNativeSlider() const { return false; }
     virtual bool isSpinButton() const { return roleValue() == SpinButtonRole; }
     virtual bool isSpinButtonPart() const { return false; }
     bool isTabItem() const { return roleValue() == TabRole; }
     virtual bool isTableCell() const { return false; }
     virtual bool isTableRow() const { return false; }
     virtual bool isTableCol() const { return false; }
     bool isTextControl() const;
     bool isTree() const { return roleValue() == TreeRole; }
     bool isTreeItem() const { return roleValue() == TreeItemRole; }
     bool isWebArea() const { return roleValue() == WebAreaRole; }
@@ skipping 273 matching lines @@
     static bool includesARIAWidgetRole(const String&);
     static bool hasInteractiveARIAAttribute(const Element&);
 };
 
 #define DEFINE_AX_OBJECT_TYPE_CASTS(thisType, predicate) \
     DEFINE_TYPE_CASTS(thisType, AXObject, object, object->predicate, object.predicate)
 
 } // namespace blink
 
 #endif // AXObject_h