Update from https://crrev.com/308996

net/quic/quic_connection_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/quic_connection.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/stl_util.h"
 #include "net/base/net_errors.h"
@@ skipping 594 matching lines @@
   QuicPacketHeader revived_header() const {
     return revived_header_;
   }
 
  private:
   QuicPacketHeader revived_header_;
 };
 
 class MockPacketWriterFactory : public QuicConnection::PacketWriterFactory {
  public:
-  MockPacketWriterFactory(QuicPacketWriter* writer) {
+  explicit MockPacketWriterFactory(QuicPacketWriter* writer) {
     ON_CALL(*this, Create(_)).WillByDefault(Return(writer));
   }
   ~MockPacketWriterFactory() override {}
 
   MOCK_CONST_METHOD1(Create, QuicPacketWriter*(QuicConnection* connection));
 };
 
 class QuicConnectionTest : public ::testing::TestWithParam<QuicVersion> {
  protected:
   QuicConnectionTest()
@@ skipping 3629 matching lines @@
   QuicBlockedFrame blocked;
   blocked.stream_id = 3;
   EXPECT_CALL(visitor_, OnBlockedFrames(_));
   ProcessFramePacket(QuicFrame(&blocked));
   EXPECT_TRUE(ack_alarm->IsSet());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net