Remove OnCertDBChanged |cert| parameter.

net/quic/chromium/quic_stream_factory_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 "net/quic/chromium/quic_stream_factory.h"
 
 #include <memory>
 #include <ostream>
 #include <utility>
 
@@ skipping 4342 matching lines @@
                             /*cert_verify_flags=*/0, url_, "GET", net_log_,
                             callback_.callback()));
 
   EXPECT_THAT(callback_.WaitForResult(), IsOk());
   std::unique_ptr<QuicHttpStream> stream = request.CreateStream();
   HttpRequestInfo request_info;
   EXPECT_EQ(OK, stream->InitializeStream(&request_info, DEFAULT_PRIORITY,
                                          net_log_, CompletionCallback()));
 
   // Change the CA cert and verify that stream saw the event.
-  factory_->OnCertDBChanged(nullptr);
+  factory_->OnCertDBChanged();
   EXPECT_EQ(ERR_CERT_DATABASE_CHANGED,
             stream->ReadResponseHeaders(callback_.callback()));
   EXPECT_FALSE(factory_->require_confirmation());
 
   // Now attempting to request a stream to the same origin should create
   // a new session.
 
   QuicStreamRequest request2(factory_.get());
   EXPECT_EQ(ERR_IO_PENDING,
             request2.Request(host_port_pair_, privacy_mode_,
@@ skipping 1311 matching lines @@
   // Clear all cached states.
   factory_->ClearCachedStatesInCryptoConfig(
       base::Callback<bool(const GURL&)>());
   EXPECT_TRUE(test_cases[0].state->certs().empty());
   EXPECT_TRUE(test_cases[1].state->certs().empty());
   EXPECT_TRUE(test_cases[2].state->certs().empty());
 }
 
 }  // namespace test
 }  // namespace net