RSS feeds with application/rss+xml or application/atom+xml should be rendered with XMLTreeViewer

content/browser/loader/buffered_resource_handler.cc

Index: content/browser/loader/buffered_resource_handler.cc
diff --git a/content/browser/loader/buffered_resource_handler.cc b/content/browser/loader/buffered_resource_handler.cc
index a3afb3fa7b6abacd66982cc1a51b7ef1fc9cb9b8..d00972da897ce69650a57971250b886093e8fd6b 100644
--- a/content/browser/loader/buffered_resource_handler.cc
+++ b/content/browser/loader/buffered_resource_handler.cc
@@ -133,12 +133,6 @@ bool BufferedResourceHandler::OnResponseStarted(
       // treat the response as "text/plain".  This is the most secure option.
       response_->head.mime_type.assign("text/plain");
     }
-
-    // Treat feed types as text/plain.
-    if (response_->head.mime_type == "application/rss+xml" ||
-        response_->head.mime_type == "application/atom+xml") {
-      response_->head.mime_type.assign("text/plain");
-    }
   }
 
   state_ = STATE_PROCESSING;