Incorrect style recalc for text-decoration-[style, color] for immediate child text nodes.

Source/core/rendering/style/RenderStyle.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Adobe Systems Incorporated. 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 171 matching lines @@
         || oldStyle->specifiesAutoColumns() != newStyle->specifiesAutoColumns()
         || !oldStyle->contentDataEquivalent(newStyle)
         || oldStyle->hasTextCombine() != newStyle->hasTextCombine())
         return Reattach;
 
     if (*oldStyle == *newStyle)
         return comparePseudoStyles(oldStyle, newStyle);
 
     if (oldStyle->inheritedNotEqual(newStyle)
         || oldStyle->hasExplicitlyInheritedProperties()
-        || newStyle->hasExplicitlyInheritedProperties())
+        || newStyle->hasExplicitlyInheritedProperties()
+        || !oldStyle->textDecorationsEqual(newStyle))
         return Inherit;
 
     return NoInherit;
 }
 
 void RenderStyle::inheritFrom(const RenderStyle* inheritParent, IsAtShadowBoundary isAtShadowBoundary)
 {
     if (isAtShadowBoundary == AtShadowBoundary) {
         // Even if surrounding content is user-editable, shadow DOM should act as a single unit, and not necessarily be editable
         EUserModify currentUserModify = userModify();
@@ skipping 127 matching lines @@
 
 bool RenderStyle::inheritedDataShared(const RenderStyle* other) const
 {
     // This is a fast check that only looks if the data structures are shared.
     return inherited_flags == other->inherited_flags
         && inherited.get() == other->inherited.get()
         && m_svgStyle.get() == other->m_svgStyle.get()
         && rareInheritedData.get() == other->rareInheritedData.get();
 }
 
+bool RenderStyle::textDecorationsEqual(const RenderStyle* other) const
+{
+    return textDecorationColor() == other->textDecorationColor()
+        && textDecorationStyle() == other->textDecorationStyle()
+        && textDecoration() == other->textDecoration();
+}
+
 static bool positionedObjectMovedOnly(const LengthBox& a, const LengthBox& b, const Length& width)
 {
     // If any unit types are different, then we can't guarantee
     // that this was just a movement.
     if (a.left().type() != b.left().type()
         || a.right().type() != b.right().type()
         || a.top().type() != b.top().type()
         || a.bottom().type() != b.bottom().type())
         return false;
 
@@ skipping 1269 matching lines @@
 }
 
 void RenderStyle::setBorderImageOutset(const BorderImageLengthBox& outset)
 {
     if (surround->border.m_image.outset() == outset)
         return;
     surround.access()->border.m_image.setOutset(outset);
 }
 
 } // namespace WebCore