Get rid of CompositingState.

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 43 matching lines @@
     return adoptPtr(new DragCaretController);
 }
 
 bool DragCaretController::isContentRichlyEditable() const
 {
     return isRichlyEditablePosition(m_position.deepEquivalent());
 }
 
 void DragCaretController::setCaretPosition(const VisiblePosition& position)
 {
-    // for querying RenderLayer::compositingState()
-    // This code is probably correct, since it doesn't occur in a stack that involves updating compositing state.
-    DisableCompositingQueryAsserts disabler;
-
     if (Node* node = m_position.deepEquivalent().deprecatedNode())
         invalidateCaretRect(node);
     m_position = position;
     setCaretRectNeedsUpdate();
     Document* document = 0;
     if (Node* node = m_position.deepEquivalent().deprecatedNode()) {
         invalidateCaretRect(node);
         document = &node->document();
     }
     if (m_position.isNull() || m_position.isOrphan()) {
@@ skipping 171 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);
 }
 
 }