Provision to start base::SimpleTestTickClock at initial ticks

media/renderers/video_renderer_impl_unittest.cc

Index: media/renderers/video_renderer_impl_unittest.cc
diff --git a/media/renderers/video_renderer_impl_unittest.cc b/media/renderers/video_renderer_impl_unittest.cc
index 332b9459801f889ebd55dea46d176202f0a39f94..ddac982e81cbb62a5b58e8ace98b7d4bd0869d8d 100644
--- a/media/renderers/video_renderer_impl_unittest.cc
+++ b/media/renderers/video_renderer_impl_unittest.cc
@@ -54,7 +54,9 @@ class VideoRendererImplTest
     : public testing::Test {
  public:
   VideoRendererImplTest()
-      : tick_clock_(new base::SimpleTestTickClock()),
+      :  // Start wallclock time at a non-zero value.
+        tick_clock_(new base::SimpleTestTickClock(
+            base::TimeTicks() + base::TimeDelta::FromMilliseconds(12345))),
         decoder_(new MockVideoDecoder()),
         demuxer_stream_(DemuxerStream::VIDEO) {
     ScopedVector<VideoDecoder> decoders;
@@ -74,9 +76,6 @@ class VideoRendererImplTest
     null_video_sink_->set_tick_clock_for_testing(tick_clock_);
     time_source_.set_tick_clock_for_testing(tick_clock_);
 
-    // Start wallclock time at a non-zero value.
-    AdvanceWallclockTimeInMs(12345);
-
     demuxer_stream_.set_video_decoder_config(TestVideoConfig::Normal());
 
     // We expect these to be called but we don't care how/when.