Use an SVGElementProxy in ReferenceClipPathOperation

third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
  * copyright notice, this list of conditions and the following disclaimer
  * in the documentation and/or other materials provided with the
  * distribution.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 120 matching lines @@
                    convertLengthOrAuto(state, *rect.bottom()),
                    convertLengthOrAuto(state, *rect.left()));
 }
 
 PassRefPtr<ClipPathOperation> StyleBuilderConverter::convertClipPath(
     StyleResolverState& state,
     const CSSValue& value) {
   if (value.isBasicShapeValue())
     return ShapeClipPathOperation::create(basicShapeForValue(state, value));
   if (value.isURIValue()) {
-    SVGURLReferenceResolver resolver(toCSSURIValue(value).value(),
-                                     state.document());
-    // If the reference is non-local, then the fragment will remain as a
-    // null string, which makes the element lookup fail.
-    AtomicString fragmentIdentifier;
-    if (resolver.isLocal())
-      fragmentIdentifier = resolver.fragmentIdentifier();
-    // TODO(fs): Doesn't work with forward or external SVG references
-    // (crbug.com/391604, crbug.com/109212, ...)
-    return ReferenceClipPathOperation::create(toCSSURIValue(value).value(),
-                                              fragmentIdentifier);
+    const CSSURIValue& urlValue = toCSSURIValue(value);
+    SVGElementProxy& elementProxy =
+        state.elementStyleResources().cachedOrPendingFromValue(urlValue);
+    // TODO(fs): Doesn't work with external SVG references (crbug.com/109212.)
+    return ReferenceClipPathOperation::create(urlValue.value(), elementProxy);
   }
   DCHECK(value.isIdentifierValue() &&
          toCSSIdentifierValue(value).getValueID() == CSSValueNone);
   return nullptr;
 }
 
 FilterOperations StyleBuilderConverter::convertFilterOperations(
     StyleResolverState& state,
     const CSSValue& value) {
   return FilterOperationResolver::createFilterOperations(state, value);
@@ skipping 1134 matching lines @@
       // Instead of the actual zoom, use 1 to avoid potential rounding errors
       Length length = primitiveValue.convertToLength(
           state.cssToLengthConversionData().copyWithAdjustedZoom(1));
       return *CSSPrimitiveValue::create(length, 1);
     }
   }
   return value;
 }
 
 }  // namespace blink