Drop "Interface" from name of QUIC debug interfaces that should not be

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"
@@ skipping 213 matching lines @@
   SerializedPacket packet_;
   SerializedPacket packet2_;
   SerializedPacket packet3_;
   SerializedPacket packet4_;
   SerializedPacket packet5_;
 
  private:
   scoped_ptr<char[]> data_array_;
 };
 
-class MockDebugDelegate : public QuicPacketGenerator::DebugDelegateInterface {
+class MockDebugDelegate : public QuicPacketGenerator::DebugDelegate {
  public:
   MOCK_METHOD1(OnFrameAddedToPacket,
                void(const QuicFrame&));
 };
 
 TEST_F(QuicPacketGeneratorTest, ShouldSendAck_NotWritable) {
   delegate_.SetCanNotWrite();
 
   generator_.SetShouldSendAck(false, false);
   EXPECT_TRUE(generator_.HasQueuedFrames());
@@ skipping 385 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