Delete an assortment of unneeded paint invalidation code.

sky/engine/core/editing/FrameSelection.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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 149 matching lines @@
 
     PassRefPtr<Range> toNormalizedRange() const { return m_selection.toNormalizedRange(); }
 
     void nodeWillBeRemoved(Node&);
     void didUpdateCharacterData(CharacterData*, unsigned offset, unsigned oldLength, unsigned newLength);
     void didMergeTextNodes(const Text& oldNode, unsigned offset);
     void didSplitTextNode(const Text& oldNode);
 
     void updateAppearance(ResetCaretBlinkOption = None);
     void setCaretVisible(bool caretIsVisible) { setCaretVisibility(caretIsVisible ? Visible : Hidden); }
-    bool isCaretBoundsDirty() const { return m_caretRectDirty; }
     void setCaretRectNeedsUpdate();
     void scheduleVisualUpdate() const;
-    void invalidateCaretRect();
     void paintCaret(GraphicsContext*, const LayoutPoint&, const LayoutRect& clipRect);
     bool ShouldPaintCaretForTesting() const { return m_shouldPaintCaret; }
 
     // Used to suspend caret blinking while the mouse is down.
     void setCaretBlinkingSuspended(bool suspended) { m_isCaretBlinkingSuspended = suspended; }
     bool isCaretBlinkingSuspended() const { return m_isCaretBlinkingSuspended; }
 
     // Focus
     void setFocused(bool);
     bool isFocused() const { return m_focused; }
@@ skipping 77 matching lines @@
     VisibleSelection m_selection;
     bool m_observingVisibleSelection;
     VisiblePosition m_originalBase; // Used to store base before the adjustment at bidi boundary
     TextGranularity m_granularity;
 
     // The range specified by the user, which may not be visually canonicalized (hence "logical").
     // This will be invalidated if the underlying VisibleSelection changes. If that happens, this variable will
     // become null, in which case logical positions == visible positions.
     RefPtr<Range> m_logicalRange;
 
-    RefPtr<Node> m_previousCaretNode; // The last node which painted the caret. Retained for clearing the old caret when it moves.
-    LayoutRect m_previousCaretRect;
-
     RefPtr<EditingStyle> m_typingStyle;
 
     Timer<FrameSelection> m_caretBlinkTimer;
 
-    bool m_caretRectDirty : 1;
     bool m_shouldPaintCaret : 1;
     bool m_isCaretBlinkingSuspended : 1;
     bool m_focused : 1;
     bool m_shouldShowBlockCursor : 1;
 };
 
 inline EditingStyle* FrameSelection::typingStyle() const
 {
     return m_typingStyle.get();
 }
 
 inline void FrameSelection::clearTypingStyle()
 {
     m_typingStyle.clear();
 }
 
 inline void FrameSelection::setTypingStyle(PassRefPtr<EditingStyle> style)
 {
     m_typingStyle = style;
 }
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const blink::FrameSelection&);
 void showTree(const blink::FrameSelection*);
 #endif
 
 #endif  // SKY_ENGINE_CORE_EDITING_FRAMESELECTION_H_