Add sender controlled playout delay limits

webrtc/modules/video_coding/timing_unittest.cc

 /*
  *  Copyright (c) 2011 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 86 matching lines @@
   requiredDecodeTimeMs = 10;
   timing.SetJitterDelay(jitterDelayMs);
   clock.AdvanceTimeMilliseconds(1000);
   timeStamp += 90000;
   timing.UpdateCurrentDelay(timeStamp);
   waitTime = timing.MaxWaitingTime(
       timing.RenderTimeMs(timeStamp, clock.TimeInMilliseconds()),
       clock.TimeInMilliseconds());
   EXPECT_EQ(waitTime, jitterDelayMs);
 
-  uint32_t minTotalDelayMs = 200;
+  int minTotalDelayMs = 200;
   timing.set_min_playout_delay(minTotalDelayMs);
   clock.AdvanceTimeMilliseconds(5000);
   timeStamp += 5 * 90000;
   timing.UpdateCurrentDelay(timeStamp);
   const int kRenderDelayMs = 10;
   timing.set_render_delay(kRenderDelayMs);
   waitTime = timing.MaxWaitingTime(
       timing.RenderTimeMs(timeStamp, clock.TimeInMilliseconds()),
       clock.TimeInMilliseconds());
   // We should at least have minTotalDelayMs - decodeTime (10) - renderTime
@@ skipping 22 matching lines @@
     int64_t render_time =
         timing.RenderTimeMs(0xFFFFFFFFu, clock.TimeInMilliseconds());
     EXPECT_EQ(3 * 1000 / kFramerate, render_time);
     render_time = timing.RenderTimeMs(89u,  // One second later in 90 kHz.
                                       clock.TimeInMilliseconds());
     EXPECT_EQ(3 * 1000 / kFramerate + 1, render_time);
   }
 }
 
 }  // namespace webrtc