Add text field change handling for autofill preview in textarea element.

Source/web/ChromeClientImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 892 matching lines @@
 
         webFrame->client()->forwardInputEvent(&webEvent);
     } else if (event->isWheelEvent()) {
         WebMouseWheelEventBuilder webEvent(webFrame->frameView(), document->renderer(), *static_cast<WebCore::WheelEvent*>(event));
         if (webEvent.type == WebInputEvent::Undefined)
             return;
         webFrame->client()->forwardInputEvent(&webEvent);
     }
 }
 
-void ChromeClientImpl::didChangeValueInTextField(HTMLInputElement& inputElement)
+void ChromeClientImpl::didChangeValueInTextField(HTMLFormControlElement& element)
 {
     if (!m_webView->autofillClient())
         return;
-    m_webView->autofillClient()->textFieldDidChange(WebInputElement(&inputElement));
+    m_webView->autofillClient()->textFieldDidChange(WebFormControlElement(&element));
 }
 
 void ChromeClientImpl::didEndEditingOnTextField(HTMLInputElement& inputElement)
 {
     if (m_webView->autofillClient())
         m_webView->autofillClient()->textFieldDidEndEditing(WebInputElement(&inputElement));
 }
 
 void ChromeClientImpl::openTextDataListChooser(HTMLInputElement& input)
 {
@@ skipping 20 matching lines @@
 {
     return static_cast<NavigatorContentUtilsClient::CustomHandlersState>(m_webView->client()->isProtocolHandlerRegistered(scheme, baseURL, url));
 }
 
 void NavigatorContentUtilsClientImpl::unregisterProtocolHandler(const String& scheme, const WebCore::KURL& baseURL, const WebCore::KURL& url)
 {
     m_webView->client()->unregisterProtocolHandler(scheme, baseURL, url);
 }
 
 } // namespace blink