Spinner elements not to dispatch change event on hover

LayoutTests/fast/forms/number/number-spinbutton-changeevent-trigger.html

Index: LayoutTests/fast/forms/number/number-spinbutton-changeevent-trigger.html
diff --git a/LayoutTests/fast/forms/number/number-spinbutton-changeevent-trigger.html b/LayoutTests/fast/forms/number/number-spinbutton-changeevent-trigger.html
index 918afe1d2bf7633ba8607d46123e8b64d9e62c7b..8c7ff8f3430476d21c73cf48eb0722d9430d1901 100644
--- a/LayoutTests/fast/forms/number/number-spinbutton-changeevent-trigger.html
+++ b/LayoutTests/fast/forms/number/number-spinbutton-changeevent-trigger.html
@@ -18,16 +18,29 @@ function handleInputEvent(element){
 var numberInput1= document.getElementById('num1');
 numberInput1.focus();
 eventSender.mouseMoveTo(0, 0);
+
+debug('Should not trigger any event');
+shouldBe('inputEventCounter', '0');
+shouldBe('changeEventCounter', '0');
 eventSender.mouseMoveTo(numberInput1.offsetLeft + numberInput1.offsetWidth - 10, numberInput1.offsetTop + numberInput1.offsetHeight / 4);
 eventSender.mouseDown();
+
 debug('Only input event occurs on mouse down');
 shouldBe('inputEventCounter', '1');
 shouldBe('changeEventCounter', '0');
+
 debug('Only change event occurs on mouse up');
 eventSender.mouseUp();
 shouldBe('inputEventCounter', '1');
 shouldBe('changeEventCounter', '1');
 
+debug('Pressed more than once, still events are triggered');
+eventSender.mouseMoveTo(numberInput1.offsetLeft + numberInput1.offsetWidth - 10, numberInput1.offsetTop + numberInput1.offsetHeight / 4);
+eventSender.mouseDown();
+eventSender.mouseUp();
+shouldBe('inputEventCounter', '2');
+shouldBe('changeEventCounter', '2');
+
 </script>
 </body>
 </html>