[WIP] Add support for Android SuggestionSpans when editing text

third_party/WebKit/Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
@@ skipping 4236 matching lines @@
 
 void Document::dataWillChange(const CharacterData& characterData) {
   if (LocalFrame* frame = this->frame())
     frame->selection().dataWillChange(characterData);
 }
 
 void Document::didInsertText(Node* text, unsigned offset, unsigned length) {
   for (Range* range : m_ranges)
     range->didInsertText(text, offset, length);
 
-  m_markers->shiftMarkers(text, offset, length);
+  m_markers->shiftMarkers(text, offset, 0, length);
 }
 
 void Document::didRemoveText(Node* text, unsigned offset, unsigned length) {
   for (Range* range : m_ranges)
     range->didRemoveText(text, offset, length);
 
   m_markers->removeMarkers(text, offset, length);
-  m_markers->shiftMarkers(text, offset + length, 0 - length);
+  m_markers->shiftMarkers(text, offset, length, 0);
 }
 
 void Document::didMergeTextNodes(const Text& mergedNode,
                                  const Text& nodeToBeRemoved,
                                  unsigned oldLength) {
   NodeWithIndex nodeToBeRemovedWithIndex(const_cast<Text&>(nodeToBeRemoved));
   if (!m_ranges.isEmpty()) {
     for (Range* range : m_ranges)
       range->didMergeTextNodes(nodeToBeRemovedWithIndex, oldLength);
   }
@@ skipping 2294 matching lines @@
 }
 
 void showLiveDocumentInstances() {
   WeakDocumentSet& set = liveDocumentSet();
   fprintf(stderr, "There are %u documents currently alive:\n", set.size());
   for (Document* document : set)
     fprintf(stderr, "- Document %p URL: %s\n", document,
             document->url().getString().utf8().data());
 }
 #endif