Provision to start base::SimpleTestTickClock at initial ticks

media/cast/receiver/frame_receiver_unittest.cc

Index: media/cast/receiver/frame_receiver_unittest.cc
diff --git a/media/cast/receiver/frame_receiver_unittest.cc b/media/cast/receiver/frame_receiver_unittest.cc
index 59451c4f00259dea3b7864fbf1939d08d0eb2978..00dd7c3b40e7796a18ce1b590596836e58061808 100644
--- a/media/cast/receiver/frame_receiver_unittest.cc
+++ b/media/cast/receiver/frame_receiver_unittest.cc
@@ -69,8 +69,7 @@ class FakeFrameClient {
 class FrameReceiverTest : public ::testing::Test {
  protected:
   FrameReceiverTest() {
-    testing_clock_ = new base::SimpleTestTickClock();
-    testing_clock_->Advance(base::TimeTicks::Now() - base::TimeTicks());
+    testing_clock_ = new base::SimpleTestTickClock(base::TimeTicks::Now());
     start_time_ = testing_clock_->NowTicks();
     task_runner_ = new test::FakeSingleThreadTaskRunner(testing_clock_);