Remove <picture> and <source>.

sky/engine/core/loader/ImageLoader.cpp

Index: sky/engine/core/loader/ImageLoader.cpp
diff --git a/sky/engine/core/loader/ImageLoader.cpp b/sky/engine/core/loader/ImageLoader.cpp
index 7484662efd5f18bcfb9aa087a33fe2e82ebd602f..e2e588e5831aff9b45db25dfdfc9537df704bc51 100644
--- a/sky/engine/core/loader/ImageLoader.cpp
+++ b/sky/engine/core/loader/ImageLoader.cpp
@@ -214,7 +214,7 @@ void ImageLoader::doUpdateFromElement(UpdateFromElementBehavior updateBehavior)
         // Unlike raw <img>, we block mixed content inside of <picture> or <img srcset>.
         ResourceLoaderOptions resourceLoaderOptions = ResourceFetcher::defaultResourceOptions();
         ResourceRequest resourceRequest(url);
-        if (isHTMLPictureElement(element()->parentNode()) || !element()->getAttribute(HTMLNames::srcsetAttr).isNull())
+        if (!element()->getAttribute(HTMLNames::srcsetAttr).isNull())
             resourceRequest.setRequestContext(WebURLRequest::RequestContextImageSet);
         FetchRequest request(ResourceRequest(url), element()->localName(), resourceLoaderOptions);