Replace QuicAckListenerInterface* with scoped_refptr<QuicAckListenerInterface>.

net/tools/quic/end_to_end_test.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 #include <sys/epoll.h>
 
 #include <cstdint>
 #include <list>
 #include <memory>
@@ skipping 1964 matching lines @@
 
   // The TestAckListener will cause a failure if not notified.
   scoped_refptr<TestAckListener> delegate(new TestAckListener(2));
 
   // Test the AckNotifier's ability to track multiple packets by making the
   // request body exceed the size of a single packet.
   string request_string =
       "a request body bigger than one packet" + string(kMaxPacketSize, '.');
 
   // Send the request, and register the delegate for ACKs.
-  client_->SendData(request_string, true, delegate.get());
+  client_->SendData(request_string, true, delegate);
   client_->WaitForResponse();
   EXPECT_EQ(kFooResponseBody, client_->response_body());
   EXPECT_EQ("200", client_->response_headers()->find(":status")->second);
 
   // Send another request to flush out any pending ACKs on the server.
   client_->SendSynchronousRequest("/bar");
 
   // Make sure the delegate does get the notification it expects.
   while (!delegate->has_been_notified()) {
     // Waits for up to 50 ms.
@@ skipping 1051 matching lines @@
   client_->WaitForResponse();
   EXPECT_EQ(kBarResponseBody, client_->response_body());
   QuicConnectionStats client_stats =
       client_->client()->session()->connection()->GetStats();
   EXPECT_EQ(0u, client_stats.packets_lost);
   EXPECT_EQ(1, client_->client()->GetNumSentClientHellos());
 }
 }  // namespace
 }  // namespace test
 }  // namespace net