Migrate WaitableEvent to enum-based constructor in media/

media/base/audio_renderer_mixer_unittest.cc

Index: media/base/audio_renderer_mixer_unittest.cc
diff --git a/media/base/audio_renderer_mixer_unittest.cc b/media/base/audio_renderer_mixer_unittest.cc
index a79d1f8c0c99d796111275cebe00a4ddbadd4d0c..7af2b829b068cc298b6e2b830887f900d4469e97 100644
--- a/media/base/audio_renderer_mixer_unittest.cc
+++ b/media/base/audio_renderer_mixer_unittest.cc
@@ -476,7 +476,9 @@ TEST_P(AudioRendererMixerBehavioralTest, MixerPausesStream) {
   const base::TimeDelta kTestTimeout = 10 * kPauseTime;
   mixer_->set_pause_delay_for_testing(kPauseTime);
 
-  base::WaitableEvent pause_event(true, false);
+  base::WaitableEvent pause_event(
+      base::WaitableEvent::ResetPolicy::MANUAL,
+      base::WaitableEvent::InitialState::NOT_SIGNALED);
   EXPECT_CALL(*sink_.get(), Pause()).Times(2)
       .WillRepeatedly(SignalEvent(&pause_event));
   InitializeInputs(1);