Resolve CSS url(...) non-<image> values against the correct base

third_party/WebKit/Source/core/css/CSSValue.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #ifndef CSSValue_h
 #define CSSValue_h
 
 #include "core/CoreExport.h"
 #include "platform/heap/Handle.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
+class Document;
 class Length;
 
 class CORE_EXPORT CSSValue : public GarbageCollectedFinalized<CSSValue> {
  public:
   // Override operator new to allocate CSSValue subtype objects onto
   // a dedicated heap.
   GC_PLUGIN_IGNORE("crbug.com/443854")
   void* operator new(size_t size) { return allocateObject(size, false); }
   static void* allocateObject(size_t size, bool isEager) {
     ThreadState* state =
@@ skipping 100 matching lines @@
     return m_classType == VariableReferenceClass;
   }
   bool isGridAutoRepeatValue() const {
     return m_classType == GridAutoRepeatClass;
   }
   bool isPendingSubstitutionValue() const {
     return m_classType == PendingSubstitutionValueClass;
   }
 
   bool hasFailedOrCanceledSubresources() const;
+  bool mayContainUrl() const;
+  void reResolveUrl(const Document&) const;
 
   bool equals(const CSSValue&) const;
 
   void finalizeGarbageCollectedObject();
   DEFINE_INLINE_TRACE_AFTER_DISPATCH() {}
   DECLARE_TRACE();
 
   // ~CSSValue should be public, because non-public ~CSSValue causes C2248
   // error: 'blink::CSSValue::~CSSValue' : cannot access protected member
   // declared in class 'blink::CSSValue' when compiling
@@ skipping 142 matching lines @@
   return first->equals(*second);
 }
 
 #define DEFINE_CSS_VALUE_TYPE_CASTS(thisType, predicate)         \
   DEFINE_TYPE_CASTS(thisType, CSSValue, value, value->predicate, \
                     value.predicate)
 
 }  // namespace blink
 
 #endif  // CSSValue_h