Merge CSSSVGDocumentValue with CSSURIValue

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

 // 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.
 
 #include "core/css/CSSURIValue.h"
 
 #include "core/css/CSSMarkup.h"
+#include "core/dom/Document.h"
+#include "core/fetch/FetchInitiatorTypeNames.h"
+#include "core/fetch/FetchRequest.h"
+#include "core/fetch/ResourceFetcher.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
-CSSURIValue::CSSURIValue(const String& str)
+CSSURIValue::CSSURIValue(const String& urlString)
     : CSSValue(URIClass)
-    , m_string(str) { }
+    , m_url(urlString)
+    , m_loadRequested(false)
+{
+}
+
+CSSURIValue::~CSSURIValue()
+{
+}
+
+DocumentResource* CSSURIValue::load(Document& document) const
+{
+    if (!m_loadRequested) {
+        m_loadRequested = true;
+
+        FetchRequest request(ResourceRequest(document.completeURL(m_url)), FetchInitiatorTypeNames::css);
+        m_document = DocumentResource::fetchSVGDocument(request, document.fetcher());
+    }
+    return m_document;
+}
 
 String CSSURIValue::customCSSText() const
 {
-    return serializeURI(m_string);
+    return serializeURI(m_url);
+}
+
+bool CSSURIValue::equals(const CSSURIValue& other) const
+{
+    return m_url == other.m_url;
 }
 
 DEFINE_TRACE_AFTER_DISPATCH(CSSURIValue)
 {
+    visitor->trace(m_document);
     CSSValue::traceAfterDispatch(visitor);
 }
 
 } // namespace blink