Fix size_t truncations in media for 64-bit VS 2015

media/cast/net/rtcp/rtcp_builder_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_defines.h"
 #include "media/cast/cast_environment.h"
 #include "media/cast/net/cast_transport_defines.h"
 #include "media/cast/net/pacing/paced_sender.h"
@@ skipping 395 matching lines @@
     p.AddRb(kMediaSsrc);
 
     p.AddReceiverLog(kSendingSsrc);
 
     int num_events = (i + kResendDelay) / kResendDelay;
     num_events = std::min<int>(num_events, kNumResends);
     p.AddReceiverFrameLog(kRtpTimestamp, num_events,
         time_base_ms - (num_events - 1) * kResendDelay *
         kTimeBetweenEventsMs);
     for (int i = 0; i < num_events; i++) {
-      p.AddReceiverEventLog(0, FRAME_ACK_SENT,
-        i * kResendDelay * kTimeBetweenEventsMs);
+      p.AddReceiverEventLog(
+          0, FRAME_ACK_SENT,
+          base::checked_cast<uint16>(i * kResendDelay * kTimeBetweenEventsMs));
     }
 
     FrameEvent frame_event;
     frame_event.rtp_timestamp = kRtpTimestamp;
     frame_event.type = FRAME_ACK_SENT;
     frame_event.media_type = VIDEO_EVENT;
     frame_event.timestamp = testing_clock.NowTicks();
     event_subscriber.OnReceiveFrameEvent(frame_event);
 
     ReceiverRtcpEventSubscriber::RtcpEvents rtcp_events;
@@ skipping 24 matching lines @@
   // Sender report.
   TestRtcpPacketBuilder p;
   p.AddSr(kSendingSsrc, 0);
 
   ExpectPacketEQ(p.GetPacket().Pass(),
                  rtcp_builder_->BuildRtcpFromSender(sender_info));
 }
 
 }  // namespace cast
 }  // namespace media