Revert of Pass task runners to AudioManager constructor.

media/audio/fake_audio_manager.cc

Index: media/audio/fake_audio_manager.cc
diff --git a/media/audio/fake_audio_manager.cc b/media/audio/fake_audio_manager.cc
index a4005e1f0acd041ca99a92dcd4567349b5ca9c10..3d7640144a96cf393d03c4c62fee6d7f16220b4c 100644
--- a/media/audio/fake_audio_manager.cc
+++ b/media/audio/fake_audio_manager.cc
@@ -13,18 +13,10 @@
 
 }  // namespace
 
-FakeAudioManager::FakeAudioManager(
-    scoped_refptr<base::SingleThreadTaskRunner> task_runner,
-    scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner,
-    AudioLogFactory* audio_log_factory)
-    : AudioManagerBase(std::move(task_runner),
-                       std::move(worker_task_runner),
-                       audio_log_factory) {
-  LOG(INFO) << __FUNCTION__;
-}
+FakeAudioManager::FakeAudioManager(AudioLogFactory* audio_log_factory)
+    : AudioManagerBase(audio_log_factory) {}
 
 FakeAudioManager::~FakeAudioManager() {
-  LOG(INFO) << __FUNCTION__;
   Shutdown();
 }