Provision to start base::SimpleTestTickClock at initial ticks

media/cast/net/rtcp/rtcp_utility_unittest.cc

 // Copyright 2014 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 "base/memory/scoped_ptr.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "media/cast/cast_environment.h"
 #include "media/cast/net/cast_transport_defines.h"
 #include "media/cast/net/rtcp/rtcp_utility.h"
 #include "media/cast/net/rtcp/test_rtcp_packet_builder.h"
@@ skipping 90 matching lines @@
       EXPECT_EQ(expected_it->event_log_messages_.size(),
                 incoming_it->event_log_messages_.size());
 
       RtcpReceiverEventLogMessages::const_iterator event_incoming_it =
           incoming_it->event_log_messages_.begin();
       RtcpReceiverEventLogMessages::const_iterator event_expected_it =
           expected_it->event_log_messages_.begin();
       for (; event_incoming_it != incoming_it->event_log_messages_.end();
            ++event_incoming_it, ++event_expected_it) {
         EXPECT_EQ(event_expected_it->type, event_incoming_it->type);
+        // SimpleTestTickClock starts at 1 microsecond, add to incoming
+        // timestamp
         EXPECT_EQ(event_expected_it->event_timestamp,
-                  event_incoming_it->event_timestamp);
+                  event_incoming_it->event_timestamp +
+                      base::TimeDelta::FromMicroseconds(1));
         if (event_expected_it->type == PACKET_RECEIVED) {
           EXPECT_EQ(event_expected_it->packet_id, event_incoming_it->packet_id);
         } else {
           EXPECT_EQ(event_expected_it->delay_delta,
                     event_incoming_it->delay_delta);
         }
       }
     }
   }
 
@@ skipping 272 matching lines @@
     p.AddReceiverEventLog(static_cast<uint16>(delay), FRAME_ACK_SENT, 0);
   }
 
   RtcpParser parser(kSourceSsrc, kSenderSsrc);
   EXPECT_TRUE(parser.Parse(p.Reader()));
   ExpectReceiverLog(parser, receiver_log);
 }
 
 }  // namespace cast
 }  // namespace media