Delete now unused StyleDifferenceContextSensitiveProperty enum

Source/core/rendering/style/RenderStyleConstants.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 26 matching lines @@
     Reattach,
     ReattachNoRenderer
 };
 
 static const size_t PrintColorAdjustBits = 1;
 enum PrintColorAdjust {
     PrintColorAdjustEconomy,
     PrintColorAdjustExact
 };
 
-// When some style properties change, different amounts of work have to be done depending on
-// context (e.g. whether the property is changing on an element which has a compositing layer).
-// A simple StyleDifference does not provide enough information so we return a bit mask of
-// StyleDifferenceContextSensitiveProperties from RenderStyle::visualInvalidationDiff() too.
-enum StyleDifferenceContextSensitiveProperty {
-    ContextSensitivePropertyNone = 0,
-    ContextSensitivePropertyTransform = (1 << 0),
-    ContextSensitivePropertyOpacity = (1 << 1),
-    ContextSensitivePropertyZIndex = (1 << 2),
-    ContextSensitivePropertyFilter = (1 << 3),
-    // The object needs to be repainted if it contains text or properties dependent on color (e.g., border or outline).
-    ContextSensitivePropertyTextOrColor = (1 << 4)
-};
-
 // Static pseudo styles. Dynamic ones are produced on the fly.
 enum PseudoId {
     // The order must be NOP ID, public IDs, and then internal IDs.
     // If you add or remove a public ID, you must update _pseudoBits in RenderStyle.
     NOPSEUDO, FIRST_LINE, FIRST_LETTER, BEFORE, AFTER, BACKDROP, SELECTION, FIRST_LINE_INHERITED, SCROLLBAR,
     // Internal IDs follow:
     SCROLLBAR_THUMB, SCROLLBAR_BUTTON, SCROLLBAR_TRACK, SCROLLBAR_TRACK_PIECE, SCROLLBAR_CORNER, RESIZER, INPUT_LIST_BUTTON,
     // Special values follow:
     AFTER_LAST_INTERNAL_PSEUDOID,
     FIRST_PUBLIC_PSEUDOID = FIRST_LINE,
@@ skipping 483 matching lines @@
 static const float maximumAllowedFontSize = 1000000.0f;
 
 enum TextIndentLine { TextIndentFirstLine, TextIndentEachLine };
 enum TextIndentType { TextIndentNormal, TextIndentHanging };
 
 enum CSSBoxType { BoxMissing = 0, MarginBox, BorderBox, PaddingBox, ContentBox };
 
 } // namespace WebCore
 
 #endif // RenderStyleConstants_h