Reviewed by Kent Tamura.

        @spellcheck attribute at the child of contentEditable node is ignored.
        https://bugs.webkit.org/show_bug.cgi?id=48418

        * editing/spelling/script-tests/spelling-attribute-at-child.js: Added.
        * editing/spelling/spelling-attribute-at-child-expected.txt: Added.
        * editing/spelling/spelling-attribute-at-child.html: Added.
2010-11-01  MORITA Hajime  <morrita@google.com>

        Reviewed by Kent Tamura.

        @spellcheck attribute at the child of contentEditable node is ignored.
        https://bugs.webkit.org/show_bug.cgi?id=48418

        Changed to check spellcheck availability against a node under the
        selection (caret) instead of the focus. For shadow elements, the
        check now refers its host node.  Note that the original code didn't
        care shadows because focus is never set on them.

        Test: editing/spelling/spelling-attribute-at-child.html

        * dom/Element.h:
        * editing/Editor.cpp:
        (WebCore::Editor::markMisspellingsOrBadGrammar):
        (WebCore::Editor::isSpellCheckingEnabledFor):
        (WebCore::Editor::isSpellCheckingEnabledInFocusedNode): Now just calling isSpellCheckingEnabledFor()
        (WebCore::Editor::markAllMisspellingsAndBadGrammarInRanges):
        * editing/Editor.h:
        * platform/ContextMenu.cpp:
        (WebCore::ContextMenu::populate):
        * rendering/TextControlInnerElements.cpp:
        (WebCore::TextControlInnerElement::isSpellCheckingEnabled): Added.
        * rendering/TextControlInnerElements.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@71101 268f45cc-cd09-0410-ab3c-d52691b4dbfc