Invalidate caret during paint invalidation

third_party/WebKit/Source/core/editing/DragCaret.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple 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
@@ skipping 27 matching lines @@
   WTF_MAKE_NONCOPYABLE(DragCaret);
   USING_GARBAGE_COLLECTED_MIXIN(DragCaret);
 
  public:
   static DragCaret* create();
 
   virtual ~DragCaret();
 
   void paintDragCaret(LocalFrame*, GraphicsContext&, const LayoutPoint&) const;
 
+  // Returns the layout object responsible for painting the caret.
+  LayoutBlock* caretLayoutBlock() const;
+  // Caret rect in coords local to |caretLayoutBlock|.
+  LayoutRect caretLocalRect() const { return m_caretLocalRect; }
+
+  void setVisualRect(const LayoutRect& r) { m_caretBase->setVisualRect(r); }
+  const DisplayItemClient& getDisplayItemClient() const { return *m_caretBase; }
+
   bool hasCaretIn(const LayoutBlock&) const;
   bool isContentRichlyEditable() const;
 
   bool hasCaret() const { return m_position.isNotNull(); }
   const PositionWithAffinity& caretPosition() { return m_position; }
   void setCaretPosition(const PositionWithAffinity&);
   void clear() { setCaretPosition(PositionWithAffinity()); }
 
   DECLARE_TRACE();
 
  private:
   DragCaret();
 
-  void invalidateCaretRect(Node*, const LayoutRect&);
-
   // Implementations of |SynchronousMutationObserver|
   void nodeChildrenWillBeRemoved(ContainerNode&) final;
   void nodeWillBeRemoved(Node&) final;
 
   PositionWithAffinity m_position;
-  // caret rect in coords local to the layoutObject responsible for painting the
-  // caret
   LayoutRect m_caretLocalRect;
   const std::unique_ptr<CaretDisplayItemClient> m_caretBase;
 };
 
 }  // namespace blink
 
 #endif  // DragCaret_h