https://bugs.webkit.org/show_bug.cgi?id=76069

Reviewed by Martin Robinson.

Source/WebCore:

Fix bug introduced with patch for Bug 72830.

* editing/gtk/FrameSelectionGtk.cpp:
(WebCore::FrameSelection::notifyAccessibilityForSelectionChange):
Pass the right accessibility object associated with the current
selection to objectFocusedAndCaretOffsetUnignored.

Source/WebKit/gtk:

Update caret browsing related unit tests to check emissions of
'text-caret-moved' and 'text-selection-changed' signals.

* tests/testatk.c:
(textCaretMovedCallback): New callback for 'text-caret-moved'.
(testWebkitAtkCaretOffsets): Check emissions of 'text-caret-moved'.
(textSelectionChangedCallback): New callback for 'text-selection-changed'.
(testWebkitAtkTextSelections): Check emissions of 'text-selection-changed'.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@104905 268f45cc-cd09-0410-ab3c-d52691b4dbfc