[WIP] Add support for Android SuggestionSpans when editing text

third_party/WebKit/Source/core/editing/markers/DocumentMarkerController.h

Index: third_party/WebKit/Source/core/editing/markers/DocumentMarkerController.h
diff --git a/third_party/WebKit/Source/core/editing/markers/DocumentMarkerController.h b/third_party/WebKit/Source/core/editing/markers/DocumentMarkerController.h
index 8a4ecdc4eaadabfe8eabb428b13a5cf62c0f0468..2b0b0064f205070889f19fea391b61435c4a2099 100644
--- a/third_party/WebKit/Source/core/editing/markers/DocumentMarkerController.h
+++ b/third_party/WebKit/Source/core/editing/markers/DocumentMarkerController.h
@@ -70,7 +70,13 @@ class CORE_EXPORT DocumentMarkerController final
                             const Position& end,
                             Color underlineColor,
                             bool thick,
-                            Color backgroundColor);
+                            Color backgroundColor,
+                            const std::vector<std::string>& suggestions);
+  void addSuggestionBackgroundHighlightMarker(const Position& start,
+                                              const Position& end,
+                                              Color underlineColor,
+                                              bool thick,
+                                              Color backgroundColor);
 
   void copyMarkers(Node* srcNode,
                    unsigned startOffset,
@@ -104,9 +110,10 @@ class CORE_EXPORT DocumentMarkerController final
       Node*,
       DocumentMarker::MarkerTypes = DocumentMarker::AllMarkers());
   void removeMarkers(const MarkerRemoverPredicate& shouldRemoveMarker);
+  void removeSuggestionMarkersByID(const Vector<int>& idsToRemove);
   void repaintMarkers(
       DocumentMarker::MarkerTypes = DocumentMarker::AllMarkers());
-  void shiftMarkers(Node*, unsigned startOffset, int delta);
+  void shiftMarkers(Node*, int startOffset, int prevLength, int delta);
   // Returns true if markers within a range are found.
   bool setMarkersActive(const EphemeralRange&, bool);
   // Returns true if markers within a range defined by a node, |startOffset| and
@@ -150,6 +157,7 @@ class CORE_EXPORT DocumentMarkerController final
   // without going through the map.
   DocumentMarker::MarkerTypes m_possiblyExistingMarkerTypes;
   const Member<const Document> m_document;
+  int m_nextSuggestionMarkerID;
 };
 
 }  // namespace blink