Adds dynamic FEC on/off switch in packet creator. Tightens use of

net/quic/quic_packet_generator_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_packet_generator.h"
 
 #include <string>
 
 #include "net/quic/crypto/crypto_protocol.h"
 #include "net/quic/crypto/null_encrypter.h"
 #include "net/quic/crypto/quic_decrypter.h"
 #include "net/quic/crypto/quic_encrypter.h"
 #include "net/quic/quic_utils.h"
+#include "net/quic/test_tools/quic_packet_creator_peer.h"
 #include "net/quic/test_tools/quic_test_utils.h"
 #include "net/quic/test_tools/simple_quic_framer.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using base::StringPiece;
 using std::string;
 using testing::InSequence;
 using testing::Return;
 using testing::SaveArg;
@@ skipping 408 matching lines @@
 
   PacketContents contents;
   contents.num_stream_frames = 2;
   CheckPacketContains(contents, packet_);
 }
 
 TEST_F(QuicPacketGeneratorTest, ConsumeDataFEC) {
   delegate_.SetCanWriteAnything();
 
   // Send FEC every two packets.
-  creator_.options()->max_packets_per_fec_group = 2;
+  EXPECT_TRUE(QuicPacketCreatorPeer::SwitchFecProtectionOn(&creator_, 2));
 
   {
     InSequence dummy;
     EXPECT_CALL(delegate_, OnSerializedPacket(_)).WillOnce(
         DoAll(SaveArg<0>(&packet_), Return(true)));
     EXPECT_CALL(delegate_, OnSerializedPacket(_)).WillOnce(
         DoAll(SaveArg<0>(&packet2_), Return(true)));
     EXPECT_CALL(delegate_, OnSerializedPacket(_)).WillOnce(
         DoAll(SaveArg<0>(&packet3_), Return(true)));
     EXPECT_CALL(delegate_, OnSerializedPacket(_)).WillOnce(
@@ skipping 15 matching lines @@
   CheckPacketIsFec(packet3_, 1);
 
   CheckPacketHasSingleStreamFrame(packet4_);
   CheckPacketIsFec(packet5_, 4);
 }
 
 TEST_F(QuicPacketGeneratorTest, ConsumeDataSendsFecAtEnd) {
   delegate_.SetCanWriteAnything();
 
   // Send FEC every six packets.
-  creator_.options()->max_packets_per_fec_group = 6;
-
+  EXPECT_TRUE(QuicPacketCreatorPeer::SwitchFecProtectionOn(&creator_, 6));
   {
     InSequence dummy;
     EXPECT_CALL(delegate_, OnSerializedPacket(_)).WillOnce(
         DoAll(SaveArg<0>(&packet_), Return(true)));
     EXPECT_CALL(delegate_, OnSerializedPacket(_)).WillOnce(
         DoAll(SaveArg<0>(&packet2_), Return(true)));
     EXPECT_CALL(delegate_, OnSerializedPacket(_)).WillOnce(
         DoAll(SaveArg<0>(&packet3_), Return(true)));
   }
 
@@ skipping 139 matching lines @@
 
   // The second should have the remainder of the stream data.
   PacketContents contents2;
   contents2.num_goaway_frames = 1;
   contents2.num_stream_frames = 1;
   CheckPacketContains(contents2, packet2_);
 }
 
 }  // namespace test
 }  // namespace net