Added accessibility notification from Blink when spelling mistakes are detected.

third_party/WebKit/Source/core/editing/spellcheck/SpellCheckRequester.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/editing/spellcheck/SpellCheckRequester.h"
 
+#include "core/dom/AXObjectCache.h"
 #include "core/dom/Document.h"
 #include "core/dom/Node.h"
 #include "core/editing/EditingUtilities.h"
 #include "core/editing/markers/DocumentMarkerController.h"
 #include "core/editing/spellcheck/SpellChecker.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "platform/text/TextCheckerClient.h"
 
 namespace blink {
@@ skipping 239 matching lines @@
 {
     TextCheckingRequestData requestData = m_processingRequest->data();
     if (requestData.sequence() == sequence) {
         DocumentMarker::MarkerTypes markers = DocumentMarker::SpellCheckClientMarkers();
         if (m_processingRequest->isValid()) {
             Range* checkingRange = m_processingRequest->checkingRange();
             frame().document()->markers().removeMarkers(EphemeralRange(checkingRange), markers);
         }
     }
     didCheck(sequence, results);
+    reportDocumentMarkersChangeToAccessibility();
 }
 
 void SpellCheckRequester::didCheckCancel(int sequence)
 {
     Vector<TextCheckingResult> results;
     didCheck(sequence, results);
 }
 
+void SpellCheckRequester::reportDocumentMarkersChangeToAccessibility() const
+{
+    if (!m_processingRequest || !m_processingRequest->isValid())
+        return;
+
+    AXObjectCache* axObjectCache = frame().document()->existingAXObjectCache();
+    if (!axObjectCache)
+        return;
+    axObjectCache->handleEditableTextContentChanged(m_processingRequest->rootEditableElement());

[dmazzoni, 2016/08/25 15:19:04]

Please add a new AXObjectCache function specifically for this, like
handleTextMarkersChanged

In a contenteditable, what node are the text markers attached to? Are they
attached to the root editable element, or to a child like a static text element?

If it's a child, then we need to fire a notification on that child also.

+}
+
 DEFINE_TRACE(SpellCheckRequester)
 {
     visitor->trace(m_frame);
     visitor->trace(m_processingRequest);
     visitor->trace(m_requestQueue);
 }
 
 } // namespace blink