[Autofill] Send events to fields being autofilled.

third_party/WebKit/Source/web/WebFormControlElement.cpp

Index: third_party/WebKit/Source/web/WebFormControlElement.cpp
diff --git a/third_party/WebKit/Source/web/WebFormControlElement.cpp b/third_party/WebKit/Source/web/WebFormControlElement.cpp
index 7dbbea50b4756d937b75e21d3f5366c0421f14e0..64f0c9d2514d5b9f8b1bb74e6c78f0805c18f0e5 100644
--- a/third_party/WebKit/Source/web/WebFormControlElement.cpp
+++ b/third_party/WebKit/Source/web/WebFormControlElement.cpp
@@ -97,6 +97,26 @@ void WebFormControlElement::setValue(const WebString& value, bool sendEvents)
         unwrap<HTMLSelectElement>()->setValue(value, sendEvents);
 }
 
+void WebFormControlElement::setAutofillValue(const WebString& value)
+{
+    // The input and change events will be sent in setValue.
+    if (isHTMLInputElement(*m_private) || isHTMLTextAreaElement(*m_private)) {
+        if (!focused())
+            unwrap<Element>()->dispatchFocusEvent(nullptr, WebFocusTypeForward, nullptr);
+        unwrap<Element>()->dispatchScopedEvent(Event::createBubble(EventTypeNames::keydown));
+        unwrap<HTMLTextFormControlElement>()->setValue(value, DispatchInputAndChangeEvent);
+        unwrap<Element>()->dispatchScopedEvent(Event::createBubble(EventTypeNames::keyup));
+        if (!focused())
+            unwrap<Element>()->dispatchBlurEvent(nullptr, WebFocusTypeForward, nullptr);
+    } else if (isHTMLSelectElement(*m_private)) {
+        if (!focused())
+            unwrap<Element>()->dispatchFocusEvent(nullptr, WebFocusTypeForward, nullptr);
+        unwrap<HTMLSelectElement>()->setValue(value, true);
+        if (!focused())
+            unwrap<Element>()->dispatchBlurEvent(nullptr, WebFocusTypeForward, nullptr);
+    }
+}
+
 WebString WebFormControlElement::value() const
 {
     if (isHTMLInputElement(*m_private))