Revert of [Mojo-Loading] Dispatch body data after response is received

content/child/url_response_body_consumer_unittest.cc

Index: content/child/url_response_body_consumer_unittest.cc
diff --git a/content/child/url_response_body_consumer_unittest.cc b/content/child/url_response_body_consumer_unittest.cc
index f4aa17d5bc3aaef337111ba18564b479c0a97c97..e1bc73eeaf1c97b4bebd8a67f449074ab94f1e44 100644
--- a/content/child/url_response_body_consumer_unittest.cc
+++ b/content/child/url_response_body_consumer_unittest.cc
@@ -150,7 +150,6 @@
   scoped_refptr<URLResponseBodyConsumer> consumer(new URLResponseBodyConsumer(
       request_id, dispatcher_.get(), std::move(data_pipe.consumer_handle),
       message_loop_.task_runner()));
-  consumer->Start(message_loop_.task_runner().get());
 
   mojo::ScopedDataPipeProducerHandle writer =
       std::move(data_pipe.producer_handle);
@@ -176,7 +175,6 @@
   scoped_refptr<URLResponseBodyConsumer> consumer(new URLResponseBodyConsumer(
       request_id, dispatcher_.get(), std::move(data_pipe.consumer_handle),
       message_loop_.task_runner()));
-  consumer->Start(message_loop_.task_runner().get());
 
   consumer->OnComplete(ResourceRequestCompletionStatus());
   mojo::ScopedDataPipeProducerHandle writer =
@@ -209,7 +207,6 @@
   scoped_refptr<URLResponseBodyConsumer> consumer(new URLResponseBodyConsumer(
       request_id, dispatcher_.get(), std::move(data_pipe.consumer_handle),
       message_loop_.task_runner()));
-  consumer->Start(message_loop_.task_runner().get());
 
   ResourceRequestCompletionStatus status;
   status.error_code = net::ERR_FAILED;