Autofill/rAc: dispatch "input" events when changing text contents of <textarea>,

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 53526f27867af0be1eb798fe217be25a152efd8b..7bed5290c843e2411ad55ffd4eee05d830a67963 100644
--- a/Source/core/html/HTMLInputElement.cpp
+++ b/Source/core/html/HTMLInputElement.cpp
@@ -857,6 +857,7 @@ void HTMLInputElement::setChecked(bool nowChecked, TextFieldEventBehavior eventB
     if (checked() == nowChecked)
         return;
 
+    RefPtr<HTMLInputElement> protector(this);
     m_reflectsCheckedAttribute = false;
     m_isChecked = nowChecked;
     setNeedsStyleRecalc(SubtreeStyleChange);
@@ -883,6 +884,8 @@ void HTMLInputElement::setChecked(bool nowChecked, TextFieldEventBehavior eventB
     // definitely wrong in practice for these types of elements.
     if (eventBehavior != DispatchNoEvent && inDocument() && m_inputType->shouldSendChangeEventAfterCheckedChanged()) {
         setTextAsOfLastFormControlChangeEvent(String());
+        if (eventBehavior == DispatchInputAndChangeEvent)
+            dispatchFormControlInputEvent();
         dispatchFormControlChangeEvent();
     }