Store border-*-style on SurroundData in ComputedStyle

third_party/WebKit/Source/core/style/CachedUAStyle.h

 /*
  * Copyright (C) 2013 Google, Inc.
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
  * All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 43 matching lines @@
            (border_left_color_is_current_color ==
                 other.BorderLeftColorIsCurrentColor() &&
             border_right_color_is_current_color ==
                 other.BorderRightColorIsCurrentColor() &&
             border_top_color_is_current_color ==
                 other.BorderTopColorIsCurrentColor() &&
             border_bottom_color_is_current_color ==
                 other.BorderBottomColorIsCurrentColor());
   }
 
+  bool BorderWidthEquals(const ComputedStyle& other) const {
+    return (border_left_width == other.BorderLeftWidth() &&
+            border_right_width == other.BorderRightWidth() &&
+            border_top_width == other.BorderTopWidth() &&
+            border_bottom_width == other.BorderBottomWidth());
+  }
+
+  bool BorderRadiiEquals(const ComputedStyle& other) const {
+    return top_left_ == other.BorderTopLeftRadius() &&
+           top_right_ == other.BorderTopRightRadius() &&
+           bottom_left_ == other.BorderBottomLeftRadius() &&
+           bottom_right_ == other.BorderBottomRightRadius();
+  }
+
+  bool BorderStyleEquals(const ComputedStyle& other) const {
+    return (
+        border_left_style == static_cast<unsigned>(other.BorderLeftStyle()) &&
+        border_right_style == static_cast<unsigned>(other.BorderRightStyle()) &&
+        border_top_style == static_cast<unsigned>(other.BorderTopStyle()) &&
+        border_bottom_style ==
+            static_cast<unsigned>(other.BorderBottomStyle()));
+  }
+
   BorderData border;
   LengthSize top_left_;
   LengthSize top_right_;
   LengthSize bottom_left_;
   LengthSize bottom_right_;
   Color border_left_color;
   Color border_right_color;
   Color border_top_color;
   Color border_bottom_color;
   bool border_left_color_is_current_color;
   bool border_right_color_is_current_color;
   bool border_top_color_is_current_color;
   bool border_bottom_color_is_current_color;
+  unsigned border_left_style : 4;    // EBorderStyle
+  unsigned border_right_style : 4;   // EBorderStyle
+  unsigned border_top_style : 4;     // EBorderStyle
+  unsigned border_bottom_style : 4;  // EBorderStyle
   float border_left_width;
   float border_right_width;
   float border_top_width;
   float border_bottom_width;
   FillLayer background_layers;
   StyleColor background_color;
 
  private:
   explicit CachedUAStyle(const ComputedStyle* style)
       : border(style->Border()),
         top_left_(style->BorderTopLeftRadius()),
         top_right_(style->BorderTopRightRadius()),
         bottom_left_(style->BorderBottomLeftRadius()),
         bottom_right_(style->BorderBottomRightRadius()),
         border_left_color(style->BorderLeftColorInternal()),
         border_right_color(style->BorderRightColorInternal()),
         border_top_color(style->BorderTopColorInternal()),
         border_bottom_color(style->BorderBottomColorInternal()),
         border_left_color_is_current_color(
             style->BorderLeftColorIsCurrentColor()),
         border_right_color_is_current_color(
             style->BorderRightColorIsCurrentColor()),
         border_top_color_is_current_color(
             style->BorderTopColorIsCurrentColor()),
         border_bottom_color_is_current_color(
             style->BorderBottomColorIsCurrentColor()),
+        border_left_style(static_cast<unsigned>(style->BorderLeftStyle())),
+        border_right_style(static_cast<unsigned>(style->BorderRightStyle())),
+        border_top_style(static_cast<unsigned>(style->BorderTopStyle())),
+        border_bottom_style(static_cast<unsigned>(style->BorderBottomStyle())),
         border_left_width(style->BorderLeftWidth()),
         border_right_width(style->BorderRightWidth()),
         border_top_width(style->BorderTopWidth()),
         border_bottom_width(style->BorderBottomWidth()),
         background_layers(style->BackgroundLayers()),
         background_color(style->BackgroundColor()) {}
 };
 
 }  // namespace blink
 
 #endif  // CachedUAStyle_h