https://bugs.webkit.org/show_bug.cgi?id=72390

Reviewed by Martin Robinson.

* tests/testatk.c:
(getWebAreaObject): New helper function, to bypass the new root
object in the accessibility hierarchy, since it's not usually
needed for the unit tests.
(testWebkitAtkCaretOffsets): Use getWebAreaObject().
(testWebkitAtkCaretOffsetsAndExtranousWhiteSpaces): Ditto.
(testWebkitAtkComboBox): Ditto.
(testWebkitAtkEmbeddedObjects): Ditto.
(testWebkitAtkGetTextAtOffsetForms): Ditto.
(testWebkitAtkGetTextAtOffset): Ditto.
(testWebkitAtkGetTextAtOffsetNewlines): Ditto.
(testWebkitAtkGetTextAtOffsetTextarea): Ditto.
(testWebkitAtkGetTextAtOffsetTextInput): Ditto.
(testWebkitAtkGetTextAtOffsetWithSpecialCharacters): Ditto.
(testWebkitAtkGetTextInParagraphAndBodySimple): Ditto.
(testWebkitAtkGetTextInParagraphAndBodyModerate): Ditto.
(testWebkitAtkGetTextInTable): Ditto.
(testWebkitAtkGetHeadersInTable): Ditto.
(testWebkitAtkTextAttributes): Ditto.
(testWebkitAtkTextSelections): Ditto.
(testWebkitAtkGetExtents): Ditto.
(testWebkitAtkLayoutAndDataTables): Ditto.
(testWebkitAtkLinksWithInlineImages): Ditto.
(testWebkitAtkHypertextAndHyperlinks): Ditto.
(testWebkitAtkListsOfItems): Ditto.
(testWebkitAtkTextChangedNotifications): Ditto.
(testWebkitAtkParentForRootObject): New test, to make sure that
both top-down and bottom-up navigation among GTK and WebKit worlds
matches accordingly.
(main): Added new test.

* webkit/webkitwebview.cpp:
(webkit_web_view_get_accessible): Remove the hack introduced
because of bug 51932, to bypass the root object here.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@100424 268f45cc-cd09-0410-ab3c-d52691b4dbfc