Remove tons of OILPAN.

sky/engine/core/editing/Caret.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 91 matching lines @@
     if (!hasCaret() || !node.inActiveDocument())
         return;
 
     if (!removingNodeRemovesPosition(node, m_position.deepEquivalent()))
         return;
 
     m_position.deepEquivalent().document()->renderView()->clearSelection();
     clear();
 }
 
-void DragCaretController::trace(Visitor* visitor)
-{
-    visitor->trace(m_position);
-}
-
 void CaretBase::clearCaretRect()
 {
     m_caretLocalRect = LayoutRect();
 }
 
 static inline bool caretRendersInsideNode(Node* node)
 {
     return node && !isRenderedTableElement(node) && !editingIgnoresContent(node);
 }
 
@@ skipping 127 matching lines @@
     context->fillRect(caret, caretColor);
 }
 
 void DragCaretController::paintDragCaret(LocalFrame* frame, GraphicsContext* p, const LayoutPoint& paintOffset, const LayoutRect& clipRect) const
 {
     if (m_position.deepEquivalent().deprecatedNode()->document().frame() == frame)
         paintCaret(m_position.deepEquivalent().deprecatedNode(), p, paintOffset, clipRect);
 }
 
 }