Split has_custom_compare_and_copy in ComputedStyleExtraFields.json5.

third_party/WebKit/Source/core/style/ComputedStyle.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 320 matching lines @@
 }
 
 void ComputedStyle::CopyNonInheritedFromCached(const ComputedStyle& other) {
   ComputedStyleBase::CopyNonInheritedFromCached(other);
   rare_non_inherited_data_ = other.rare_non_inherited_data_;
 
   // The flags are copied one-by-one because they contain
   // bunch of stuff other than real style data.
   // See comments for each skipped flag below.
 
-  // These are not generated in ComputedStyleBase
-  SetHasViewportUnits(other.HasViewportUnits());
-  SetHasRemUnitsInternal(other.HasRemUnits());
-
   // Correctly set during selector matching:
   // m_styleType
   // m_pseudoBits
 
   // Set correctly while computing style for children:
   // m_explicitInheritance
 
   // unique() styles are not cacheable.
   DCHECK(!other.Unique());
 
@@ skipping 2003 matching lines @@
     if (value < 0)
       fvalue -= 0.5f;
     else
       fvalue += 0.5f;
   }
 
   return RoundForImpreciseConversion<int>(fvalue / zoom_factor);
 }
 
 }  // namespace blink