Make CaretBase a DisplayItemClient.

third_party/WebKit/Source/core/editing/FrameSelection.cpp

 /*
  * Copyright (C) 2004, 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 690 matching lines @@
         return nullptr;
     return CaretBase::caretLayoutObject(selection().start().anchorNode());
 }
 
 IntRect FrameSelection::absoluteCaretBounds()
 {
     DCHECK(selection().isValidFor(*m_frame->document()));
     return m_frameCaret->absoluteCaretBounds();
 }
 
-void FrameSelection::invalidateCaretRect()
+void FrameSelection::invalidateCaretRect(bool forceInvalidation)
 {
-    m_frameCaret->invalidateCaretRect();
+    m_frameCaret->invalidateCaretRect(forceInvalidation);
 }
 
 void FrameSelection::dataWillChange(const CharacterData& node)
 {
     m_frameCaret->dataWillChange(node);
 }
 
 void FrameSelection::paintCaret(GraphicsContext& context, const LayoutPoint& paintOffset)
 {
     m_frameCaret->paintCaret(context, paintOffset);
@@ skipping 653 matching lines @@
 
 void showTree(const blink::FrameSelection* sel)
 {
     if (sel)
         sel->showTreeForThis();
     else
         fprintf(stderr, "Cannot showTree for (nil) FrameSelection.\n");
 }
 
 #endif