Add/remove spell checking markers in text inputs depending on focus.

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 375 matching lines @@
         if (!restorePreviousSelection || !hasCachedSelection())
             select();
         else
             restoreCachedSelection();
         if (document()->frame())
             document()->frame()->selection()->revealSelection();
     } else
         HTMLTextFormControlElement::updateFocusAppearance(restorePreviousSelection);
 }
 
+void HTMLInputElement::beginEditing()
+{
+    if (!isTextField())
+        return;
+
+    if (Frame* frame = document()->frame())
+        frame->editor()->textFieldDidBeginEditing(this);
+}
+
 void HTMLInputElement::endEditing()
 {
     if (!isTextField())
         return;
 
     if (Frame* frame = document()->frame())
         frame->editor()->textFieldDidEndEditing(this);
 }
 
 bool HTMLInputElement::shouldUseInputMethod()
@@ skipping 1491 matching lines @@
 }
 
 #if ENABLE(INPUT_MULTIPLE_FIELDS_UI)
 PassRefPtr<RenderStyle> HTMLInputElement::customStyleForRenderer()
 {
     return m_inputType->customStyleForRenderer(originalStyleForRenderer());
 }
 #endif
 
 } // namespace