Repaint selection when element with ::selection style is recalculated.

third_party/WebKit/Source/core/style/ComputedStyle.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, 2011 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 3733 matching lines @@
   bool scrollAnchorDisablingPropertyChanged(const ComputedStyle& other,
                                             const StyleDifference&) const;
   bool diffNeedsFullLayoutAndPaintInvalidation(
       const ComputedStyle& other) const;
   bool diffNeedsFullLayout(const ComputedStyle& other) const;
   bool diffNeedsPaintInvalidationSubtree(const ComputedStyle& other) const;
   bool diffNeedsPaintInvalidationObject(const ComputedStyle& other) const;
   bool diffNeedsPaintInvalidationObjectForPaintImage(
       const StyleImage*,
       const ComputedStyle& other) const;
+  bool diffNeedsPaintInvalidationSelection(const ComputedStyle& other) const;
   void updatePropertySpecificDifferences(const ComputedStyle& other,
                                          StyleDifference&) const;
 
   bool requireTransformOrigin(ApplyTransformOrigin applyOrigin,
                               ApplyMotionPath) const;
   static bool shadowListHasCurrentColor(const ShadowList*);
 
   StyleInheritedVariables& mutableInheritedVariables();
   StyleNonInheritedVariables& mutableNonInheritedVariables();
 };
@@ skipping 83 matching lines @@
   m_nonInheritedData.m_pseudoBits |= 1 << (pseudo - 1);
 }
 
 inline bool ComputedStyle::hasPseudoElementStyle() const {
   return m_nonInheritedData.m_pseudoBits & ElementPseudoIdMask;
 }
 
 }  // namespace blink
 
 #endif  // ComputedStyle_h