[WIP] Add support for Android SuggestionSpans when editing text

content/renderer/render_widget.h

Index: content/renderer/render_widget.h
diff --git a/content/renderer/render_widget.h b/content/renderer/render_widget.h
index fde0e327e5adf517bab96261f8cd76f8eed48856..af68a711b0726a050bb7601a862e9b5f5d68babf 100644
--- a/content/renderer/render_widget.h
+++ b/content/renderer/render_widget.h
@@ -292,6 +292,7 @@ class CONTENT_EXPORT RenderWidget
                       blink::WebTextDirection hint) override;
   void setWindowRect(const blink::WebRect&) override;
   blink::WebScreenInfo screenInfo() override;
+  void handlePotentialTextSuggestionTap() override;
   void resetInputMethod() override;
   void didHandleGestureEvent(const blink::WebGestureEvent& event,
                              bool event_cancelled) override;
@@ -503,6 +504,10 @@ class CONTENT_EXPORT RenderWidget
       const gfx::Range& replacement_range,
       int relative_cursor_pos);
   virtual void OnImeFinishComposingText(bool keep_selection);
+  virtual void OnApplySuggestionReplacement(int document_marker_id,
+                                            int suggestion_index);
+  virtual void OnDeleteSuggestionHighlight();
+  virtual void OnSuggestionMenuClosed();
 
   // Called when the device scale factor is changed, or the layer tree is
   // initialized.