Avoid cluster set up at max bitrate at start

webrtc/modules/congestion_controller/probe_controller_unittest.cc

Index: webrtc/modules/congestion_controller/probe_controller_unittest.cc
diff --git a/webrtc/modules/congestion_controller/probe_controller_unittest.cc b/webrtc/modules/congestion_controller/probe_controller_unittest.cc
index 693277552c6e0d9c1e506fa0021096dda5e2dba9..d4b6d0d746c22d835a9f19d76e94dca687afe87f 100644
--- a/webrtc/modules/congestion_controller/probe_controller_unittest.cc
+++ b/webrtc/modules/congestion_controller/probe_controller_unittest.cc
@@ -53,9 +53,10 @@ TEST_F(ProbeControllerTest, InitiatesProbingOnMaxBitrateIncrease) {
   EXPECT_CALL(pacer_, CreateProbeCluster(_, _)).Times(AtLeast(2));
   probe_controller_->SetBitrates(kMinBitrateBps, kStartBitrateBps,
                                  kMaxBitrateBps);
-  clock_.AdvanceTimeMilliseconds(25);
-
+  // Long enough to time out exponential probing.
+  clock_.AdvanceTimeMilliseconds(5000);

[stefan-webrtc, 2016/09/16 07:31:01]

Make 5000 a constant of ProbeController.

[Irfan, 2016/09/16 16:26:28]

Done.

   probe_controller_->SetEstimatedBitrate(kStartBitrateBps);
+
   EXPECT_CALL(pacer_, CreateProbeCluster(kMaxBitrateBps + 100, _));
   probe_controller_->SetBitrates(kMinBitrateBps, kStartBitrateBps,
                                  kMaxBitrateBps + 100);