Remove implicit-int-conversion warnings.

webrtc/video_engine/report_block_stats.cc

 /*
  *  Copyright (c) 2014 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 52 matching lines @@
                                &num_lost_sequence_numbers);
   }
 
   if (report_blocks.size() == 1) {
     // No aggregation needed.
     return report_blocks[0];
   }
   // Fraction lost since previous report block.
   aggregate.fractionLost =
       FractionLost(num_lost_sequence_numbers, num_sequence_numbers);
-  aggregate.jitter =
-      (aggregate.jitter + report_blocks.size() / 2) / report_blocks.size();
+  aggregate.jitter = static_cast<uint32_t>(
+      (aggregate.jitter + report_blocks.size() / 2) / report_blocks.size());
   return aggregate;
 }
 
 void ReportBlockStats::StoreAndAddPacketIncrement(
     const RTCPReportBlock& report_block,
     uint32_t* num_sequence_numbers,
     uint32_t* num_lost_sequence_numbers) {
   // Get diff with previous report block.
   ReportBlockMap::iterator prev_report_block = prev_report_blocks_.find(
         report_block.sourceSSRC);
@@ skipping 17 matching lines @@
 int ReportBlockStats::FractionLostInPercent() const {
   if (num_sequence_numbers_ == 0) {
     return -1;
   }
   return FractionLost(
       num_lost_sequence_numbers_, num_sequence_numbers_) * 100 / 255;
 }
 
 }  // namespace webrtc