Web Animations API: Load resources referenced in element.animate() (reland)

Source/core/css/resolver/StyleResourceLoader.cpp

Index: Source/core/css/resolver/StyleResourceLoader.cpp
diff --git a/Source/core/css/resolver/StyleResourceLoader.cpp b/Source/core/css/resolver/StyleResourceLoader.cpp
index 83190599961a6239a8c971e4743496d809e0b493..3dbc1e8d2bb57dd002651bb3dff074d8f72517d0 100644
--- a/Source/core/css/resolver/StyleResourceLoader.cpp
+++ b/Source/core/css/resolver/StyleResourceLoader.cpp
@@ -46,7 +46,7 @@ StyleResourceLoader::StyleResourceLoader(ResourceFetcher* fetcher)
 {
 }
 
-void StyleResourceLoader::loadPendingSVGDocuments(RenderStyle* renderStyle, const ElementStyleResources& elementStyleResources)
+void StyleResourceLoader::loadPendingSVGDocuments(RenderStyle* renderStyle, ElementStyleResources& elementStyleResources)
 {
     if (!renderStyle->hasFilter() || elementStyleResources.pendingSVGDocuments().isEmpty())
         return;
@@ -68,6 +68,8 @@ void StyleResourceLoader::loadPendingSVGDocuments(RenderStyle* renderStyle, cons
             ReferenceFilterBuilder::setDocumentResourceReference(referenceFilter, adoptPtr(new DocumentResourceReference(resource)));
         }
     }
+
+    elementStyleResources.clearPendingSVGDocuments();
 }
 
 static PassRefPtr<StyleImage> doLoadPendingImage(ResourceFetcher* fetcher, StylePendingImage* pendingImage, float deviceScaleFactor, const ResourceLoaderOptions& options)
@@ -112,7 +114,7 @@ void StyleResourceLoader::loadPendingShapeImage(RenderStyle* renderStyle, ShapeV
     shapeValue->setImage(doLoadPendingImage(m_fetcher, toStylePendingImage(image), deviceScaleFactor, options));
 }
 
-void StyleResourceLoader::loadPendingImages(RenderStyle* style, const ElementStyleResources& elementStyleResources)
+void StyleResourceLoader::loadPendingImages(RenderStyle* style, ElementStyleResources& elementStyleResources)
 {
     if (elementStyleResources.pendingImageProperties().isEmpty())
         return;
@@ -196,6 +198,8 @@ void StyleResourceLoader::loadPendingImages(RenderStyle* style, const ElementSty
             ASSERT_NOT_REACHED();
         }
     }
+
+    elementStyleResources.clearPendingImageProperties();
 }
 
 void StyleResourceLoader::loadPendingResources(RenderStyle* renderStyle, ElementStyleResources& elementStyleResources)