Click event should be fired before change events for checkbox and radio button.

Source/core/html/HTMLInputElement.cpp

Index: Source/core/html/HTMLInputElement.cpp
diff --git a/Source/core/html/HTMLInputElement.cpp b/Source/core/html/HTMLInputElement.cpp
index b0d4f5783baec227e3c2b911344a79068cebb827..da5a7c41e110f5f7024099ae1531cfeffab90a08 100644
--- a/Source/core/html/HTMLInputElement.cpp
+++ b/Source/core/html/HTMLInputElement.cpp
@@ -897,6 +897,13 @@ bool HTMLInputElement::isTextField() const
     return m_inputType->isTextField();
 }
 
+void HTMLInputElement::dispatchChangeEventIfNeeded(TextFieldEventBehavior eventBehavior)

[tkent, 2015/04/07 06:32:28]

The argument is always DispatchChangeEvent.  We can remove the argument of this
function.

[Paritosh Kumar, 2015/04/07 08:53:58]

Thanks.

+{
+    setTextAsOfLastFormControlChangeEvent(String());
+    if (eventBehavior != DispatchNoEvent && inDocument() && m_inputType->shouldSendChangeEventAfterCheckedChanged())
+        dispatchFormControlChangeEvent();
+}
+
 void HTMLInputElement::setChecked(bool nowChecked, TextFieldEventBehavior eventBehavior)
 {
     if (checked() == nowChecked)
@@ -930,7 +937,6 @@ void HTMLInputElement::setChecked(bool nowChecked, TextFieldEventBehavior eventB
         setTextAsOfLastFormControlChangeEvent(String());
         if (eventBehavior == DispatchInputAndChangeEvent)
             dispatchFormControlInputEvent();
-        dispatchFormControlChangeEvent();
     }
 
     pseudoStateChanged(CSSSelector::PseudoChecked);