[Mojo-Loading] OnStartLoadingResponseBody should be called after OnReceiveResponse

content/child/url_response_body_consumer.h

Index: content/child/url_response_body_consumer.h
diff --git a/content/child/url_response_body_consumer.h b/content/child/url_response_body_consumer.h
index 1947cb66b1eb7d9efc552fe5527273d86968f3bb..b35abc88d2f18f0ca1a754f34d8537903d724a2a 100644
--- a/content/child/url_response_body_consumer.h
+++ b/content/child/url_response_body_consumer.h
@@ -37,9 +37,6 @@ class CONTENT_EXPORT URLResponseBodyConsumer final
       mojo::ScopedDataPipeConsumerHandle handle,
       scoped_refptr<base::SingleThreadTaskRunner> task_runner);
 
-  // Starts watching the handle.
-  void Start();
-
   // Sets the completion status. The completion status is dispatched to the
   // ResourceDispatcher when the both following conditions hold:
   //  1) This function has been called and the completion status is set, and