Make the URI of an nsIImageLoadingContent immutable. Bug 337246, r=biesi, sr=sicking

git-svn-id: svn://10.0.0.236/trunk@198735 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/content/base/src/nsObjectLoadingContent.cpp

@@ -705,6 +705,8 @@ nsObjectLoadingContent::LoadObject(const nsAString& aURI,
     return NS_OK;
   }
 
+  NS_TryToSetImmutable(uri);
+
   return LoadObject(uri, aNotify, aTypeHint, aForceLoad);
 }