Update of change event for input type number

Source/core/html/forms/TextFieldInputType.cpp

Index: Source/core/html/forms/TextFieldInputType.cpp
diff --git a/Source/core/html/forms/TextFieldInputType.cpp b/Source/core/html/forms/TextFieldInputType.cpp
index 807f2623d1cd28b3bfbb431cd43d1060fbc4538a..e7400a1368999f4ea19e879e9537fdc46170860a 100644
--- a/Source/core/html/forms/TextFieldInputType.cpp
+++ b/Source/core/html/forms/TextFieldInputType.cpp
@@ -222,6 +222,7 @@ void TextFieldInputType::handleKeydownEventForSpinButton(KeyboardEvent* event)
         spinButtonStepDown();
     else
         return;
+    spinButtonDispatchChangeEvent();

[tkent, 2014/01/17 02:19:20]

Calling a SpinButtonOwner function here looks strange (including
spinButtonStepUp/Down above).  We had better call
element().dispatchFormControlChangeEvent directly.

     event->setDefaultHandled();
 }
 
@@ -575,4 +576,9 @@ bool TextFieldInputType::shouldSpinButtonRespondToWheelEvents()
     return shouldSpinButtonRespondToMouseEvents() && element().focused();
 }
 
+void TextFieldInputType::spinButtonDispatchChangeEvent()
+{
+    element().dispatchFormControlChangeEvent();
+}
+
 } // namespace WebCore