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..6f1365e6f7da4aaa865031947d1e77c57b118b0b 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;
+    element().dispatchFormControlChangeEvent();
     event->setDefaultHandled();
 }
 
@@ -575,4 +576,9 @@ bool TextFieldInputType::shouldSpinButtonRespondToWheelEvents()
     return shouldSpinButtonRespondToMouseEvents() && element().focused();
 }
 
+void TextFieldInputType::spinButtonDidReleaseMouseCapture()
+{
+    element().dispatchFormControlChangeEvent();
+}
+
 } // namespace WebCore