[WIP] Add support for Android SuggestionSpans when editing text

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

Index: third_party/WebKit/Source/core/editing/markers/DocumentMarker.h
diff --git a/third_party/WebKit/Source/core/editing/markers/DocumentMarker.h b/third_party/WebKit/Source/core/editing/markers/DocumentMarker.h
index 06f90d4a9d9b801d5c207d81a848d0a6d113e0ad..6a88f987a03b1ea6ec9a267f68e792411d16b68d 100644
--- a/third_party/WebKit/Source/core/editing/markers/DocumentMarker.h
+++ b/third_party/WebKit/Source/core/editing/markers/DocumentMarker.h
@@ -46,6 +46,8 @@ class CORE_EXPORT DocumentMarker : public GarbageCollected<DocumentMarker> {
     TextMatchMarkerIndex,
     InvisibleSpellcheckMarkerIndex,
     CompositionMarkerIndex,
+    SuggestionMarkerIndex,
+    SuggestionBackgroundHighlightMarkerIndex,
     MarkerTypeIndexesCount
   };
 
@@ -55,6 +57,9 @@ class CORE_EXPORT DocumentMarker : public GarbageCollected<DocumentMarker> {
     TextMatch = 1 << TextMatchMarkerIndex,
     InvisibleSpellcheck = 1 << InvisibleSpellcheckMarkerIndex,
     Composition = 1 << CompositionMarkerIndex,
+    Suggestion = 1 << SuggestionMarkerIndex,
+    SuggestionBackgroundHighlight = 1

[rlanday, 2017/01/25 18:48:10]

lol @ git cl format...

+                                    << SuggestionBackgroundHighlightMarkerIndex,
   };
 
   class MarkerTypes {
@@ -82,7 +87,9 @@ class CORE_EXPORT DocumentMarker : public GarbageCollected<DocumentMarker> {
    public:
     AllMarkers()
         : MarkerTypes(Spelling | Grammar | TextMatch | InvisibleSpellcheck |
-                      Composition) {}
+                      Composition |
+                      Suggestion |
+                      SuggestionBackgroundHighlight) {}
   };
 
   class MisspellingMarkers : public MarkerTypes {
@@ -102,11 +109,19 @@ class CORE_EXPORT DocumentMarker : public GarbageCollected<DocumentMarker> {
                  const String& description,
                  uint32_t hash);
   DocumentMarker(unsigned startOffset, unsigned endOffset, bool activeMatch);
-  DocumentMarker(unsigned startOffset,
+  DocumentMarker(MarkerType type,
+                 unsigned startOffset,
                  unsigned endOffset,
                  Color underlineColor,
                  bool thick,
                  Color backgroundColor);
+  DocumentMarker(unsigned startOffset,
+                 unsigned endOffset,
+                 Color underlineColor,
+                 bool thick,
+                 Color backgroundColor,
+                 const std::vector<std::string>& suggestions,
+                 int32_t suggestionMarkerID);
 
   DocumentMarker(const DocumentMarker&);
 
@@ -120,10 +135,13 @@ class CORE_EXPORT DocumentMarker : public GarbageCollected<DocumentMarker> {
   Color underlineColor() const;
   bool thick() const;
   Color backgroundColor() const;
+  const std::vector<std::string> suggestions() const;
+  int suggestionMarkerID() const;
   DocumentMarkerDetails* details() const;
 
   void setActiveMatch(bool);
   void clearDetails() { m_details.clear(); }
+  void replaceSuggestion(int index, const std::string& newSuggestion);
 
   // Offset modifications are done by DocumentMarkerController.
   // Other classes should not call following setters.
@@ -162,6 +180,7 @@ class DocumentMarkerDetails
   virtual bool isDescription() const { return false; }
   virtual bool isTextMatch() const { return false; }
   virtual bool isComposition() const { return false; }
+  virtual bool isSuggestion() const { return true; }
 
   DEFINE_INLINE_VIRTUAL_TRACE() {}
 };