Add QuicDataChannel and QuicDataTransport classes

webrtc/p2p/quic/quicconnectionhelper_unittest.cc

 /*
  *  Copyright 2016 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 34 matching lines @@
 
  private:
   QuicTime now_;
 };
 
 // Implements OnAlarm() event which alarm triggers.
 class MockAlarmDelegate : public QuicAlarm::Delegate {
  public:
   MockAlarmDelegate() : fired_(false) {}
 
-  QuicTime OnAlarm() override {
-    fired_ = true;
-    return QuicTime::Zero();
-  }
+  void OnAlarm() override { fired_ = true; }
 
   bool fired() const { return fired_; }
   void Clear() { fired_ = false; }
 
  private:
   bool fired_;
 };
 
 class QuicAlarmTest : public ::testing::Test {
  public:
@@ skipping 49 matching lines @@
   ASSERT_FALSE(delegate_->fired());
 }
 
 // Test that timing for posting task is accurate.
 TEST_F(QuicAlarmTest, AlarmGetDelay) {
   SetTime(1000000);
   EXPECT_EQ(1000, alarm_->GetDelay());
   clock_.AdvanceTime(QuicTime::Delta::FromMicroseconds(300000));
   EXPECT_EQ(700, alarm_->GetDelay());
 }