Synchronize is-valid flag upon programmatic clearing of file.value

Source/core/html/HTMLInputElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
@@ skipping 983 matching lines @@
         setSelectionRange(max, max);
     else
         cacheSelectionInResponseToSetValue(max);
 
     dispatchInputEvent();
 }
 
 void HTMLInputElement::setValue(const String& value, ExceptionState& exceptionState, TextFieldEventBehavior eventBehavior)
 {
     if (isFileUpload() && !value.isEmpty()) {
-        exceptionState.throwDOMException(InvalidStateError, "This input element accepts a filename, which may only be programatically set to the empty string.");
+        exceptionState.throwDOMException(InvalidStateError, "This input element accepts a filename, which may only be programmatically set to the empty string.");
         return;
     }
     setValue(value, eventBehavior);
 }
 
 void HTMLInputElement::setValue(const String& value, TextFieldEventBehavior eventBehavior)
 {
     if (!m_inputType->canSetValue(value))
         return;
 
@@ skipping 851 matching lines @@
 }
 
 #if ENABLE(INPUT_MULTIPLE_FIELDS_UI)
 PassRefPtr<RenderStyle> HTMLInputElement::customStyleForRenderer()
 {
     return m_inputTypeView->customStyleForRenderer(originalStyleForRenderer());
 }
 #endif
 
 } // namespace