Tag SecurityContext objects as being hosted in reserved IP ranges.

Source/core/dom/Document.cpp

Index: Source/core/dom/Document.cpp
diff --git a/Source/core/dom/Document.cpp b/Source/core/dom/Document.cpp
index ed32db5dc9abfa7076b897f964dcde6993aa9b58..819235fb787ac547e42460dcdb752c693cca1799 100644
--- a/Source/core/dom/Document.cpp
+++ b/Source/core/dom/Document.cpp
@@ -4680,6 +4680,9 @@ void Document::initSecurityContext(const DocumentInit& initializer)
         return;
     }
 
+    if (initializer.isHostedInReservedIPRange())
+        setHostedInReservedIPRange();
+
     if (!initializer.hasSecurityContext()) {
         // No source for a security context.
         // This can occur via document.implementation.createDocument().