Invalidate border/outline on color change only if they use current color

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 2935 matching lines @@
   float BorderBeforeWidth() const;
   float BorderEndWidth() const;
   float BorderStartWidth() const;
   float BorderOverWidth() const;
   float BorderUnderWidth() const;
 
   bool HasBorderFill() const { return Border().HasBorderFill(); }
   bool HasBorder() const { return Border().HasBorder(); }
   bool HasBorderDecoration() const { return HasBorder() || HasBorderFill(); }
   bool HasBorderRadius() const { return Border().HasBorderRadius(); }
+  bool HasBorderColorReferencingCurrentColor() const {
+    return Border().HasBorderColorReferencingCurrentColor();
+  }
 
   void ResetBorder() {
     ResetBorderImage();
     ResetBorderTop();
     ResetBorderRight();
     ResetBorderBottom();
     ResetBorderLeft();
     ResetBorderTopLeftRadius();
     ResetBorderTopRightRadius();
     ResetBorderBottomLeftRadius();
@@ skipping 71 matching lines @@
   void ResetPageSizeType() {
     SET_VAR(rare_non_inherited_data_, page_size_type_, PAGE_SIZE_AUTO);
   }
 
   // Outline utility functions.
   bool HasOutline() const {
     return OutlineWidth() > 0 && OutlineStyle() > kBorderStyleHidden;
   }
   int OutlineOutsetExtent() const;
   float GetOutlineStrokeWidthForFocusRing() const;
+  bool IsOutlineColorCurrentColor() const {
+    return HasOutline() && OutlineColor().IsCurrentColor();
+  }
 
   // Position utility functions.
   bool HasOutOfFlowPosition() const {
     return GetPosition() == EPosition::kAbsolute ||
            GetPosition() == EPosition::kFixed;
   }
   bool HasInFlowPosition() const {
     return GetPosition() == EPosition::kRelative ||
            GetPosition() == EPosition::kSticky;
   }
@@ skipping 684 matching lines @@
       PseudoBitsInternal() | 1 << (pseudo - kFirstPublicPseudoId)));
 }
 
 inline bool ComputedStyle::HasPseudoElementStyle() const {
   return PseudoBitsInternal() & kElementPseudoIdMask;
 }
 
 }  // namespace blink
 
 #endif  // ComputedStyle_h