Remove media::BindToLoop() in favour of media::BindToCurrentLoop().

media/audio/win/audio_manager_win.cc

Index: media/audio/win/audio_manager_win.cc
diff --git a/media/audio/win/audio_manager_win.cc b/media/audio/win/audio_manager_win.cc
index 5e105dbd8ac24716278e40f9beb61fac19862803..42f3591b1eb487bea9a3a2b8dae4dbda7f2a6959 100644
--- a/media/audio/win/audio_manager_win.cc
+++ b/media/audio/win/audio_manager_win.cc
@@ -165,10 +165,9 @@ void AudioManagerWin::CreateDeviceListener() {
   // AudioDeviceListenerWin must be initialized on a COM thread and should only
   // be used if WASAPI / Core Audio is supported.
   if (CoreAudioUtil::IsSupported()) {
-    output_device_listener_.reset(new AudioDeviceListenerWin(BindToLoop(
-        GetTaskRunner(), base::Bind(
-            &AudioManagerWin::NotifyAllOutputDeviceChangeListeners,
-            base::Unretained(this)))));
+    output_device_listener_.reset(new AudioDeviceListenerWin(BindToCurrentLoop(
+        base::Bind(&AudioManagerWin::NotifyAllOutputDeviceChangeListeners,
+                   base::Unretained(this)))));
   }
 }