Merge CSSSVGDocumentValue with CSSURIValue

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

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CSSURIValue_h
 #define CSSURIValue_h
 
 #include "core/css/CSSValue.h"
+#include "core/fetch/DocumentResource.h"
 
 namespace blink {
 
+class Document;
+
 class CSSURIValue : public CSSValue {
 public:
     static CSSURIValue* create(const String& str)
     {
         return new CSSURIValue(str);
     }
+    ~CSSURIValue();
 
-    String value() const { return m_string; }
+    DocumentResource* cachedDocument() const { return m_document; }
+    DocumentResource* load(Document&) const;
+
+    const String& value() const { return m_url; }
+    const String& url() const { return m_url; }
 
     String customCSSText() const;
 
-    bool equals(const CSSURIValue& other) const
-    {
-        return m_string == other.m_string;
-    }
+    bool loadRequested() const { return m_loadRequested; }
+    bool equals(const CSSURIValue&) const;
 
     DECLARE_TRACE_AFTER_DISPATCH();
 
 private:
     CSSURIValue(const String&);
 
-    String m_string;
+    String m_url;
+
+    // Document cache.
+    mutable Member<DocumentResource> m_document;
+    mutable bool m_loadRequested;
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSURIValue, isURIValue());
 
 } // namespace blink
 
 #endif // CSSURIValue_h