Provision to start base::SimpleTestTickClock at initial ticks

media/cast/sender/congestion_control_unittest.cc

Index: media/cast/sender/congestion_control_unittest.cc
diff --git a/media/cast/sender/congestion_control_unittest.cc b/media/cast/sender/congestion_control_unittest.cc
index c1b8ae1d97949669ce829b720b34a1b048f163aa..2bec16433edd8e851e5d85e577492afc48a55599 100644
--- a/media/cast/sender/congestion_control_unittest.cc
+++ b/media/cast/sender/congestion_control_unittest.cc
@@ -25,9 +25,9 @@ static const double kTargetEmptyBufferFraction = 0.9;
 class CongestionControlTest : public ::testing::Test {
  protected:
   CongestionControlTest()
-      : task_runner_(new test::FakeSingleThreadTaskRunner(&testing_clock_)) {
-    testing_clock_.Advance(
-        base::TimeDelta::FromMilliseconds(kStartMillisecond));
+      : testing_clock_(base::TimeTicks() +
+                       base::TimeDelta::FromMilliseconds(kStartMillisecond)),
+        task_runner_(new test::FakeSingleThreadTaskRunner(&testing_clock_)) {
     congestion_control_.reset(NewAdaptiveCongestionControl(
         &testing_clock_, kMaxBitrateConfigured, kMinBitrateConfigured,
         kMaxFrameRate));