(input-textfield) : Update the shadow tree accordingly when 'value' attribute is directly modified and a DOMAttrModified event is fired.
(input-textfield) : Update the shadow tree accordingly when 'value' attribute is directly modified and a DOMAttrModified event is fired.

git-svn-id: 8c168edca3c6157a1911f01a73f2fb8eefd5ed32@2687 d15c3b8f-5b43-0410-be93-4d5a55ce2954

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