Make SystemMonitor report all audio device changes instead of just audio capture.

media/midi/midi_manager_win.cc

Index: media/midi/midi_manager_win.cc
diff --git a/media/midi/midi_manager_win.cc b/media/midi/midi_manager_win.cc
index c0f10df3ecee3a1849e276c2eb4dacbb75306b84..90fa8bce5145565dd1638e41239c48d90cbc6b22 100644
--- a/media/midi/midi_manager_win.cc
+++ b/media/midi/midi_manager_win.cc
@@ -554,7 +554,7 @@ class MidiServiceWinImpl : public MidiServiceWin,
       return;
 
     switch (device_type) {
-      case base::SystemMonitor::DEVTYPE_AUDIO_CAPTURE:
+      case base::SystemMonitor::DEVTYPE_AUDIO:
       case base::SystemMonitor::DEVTYPE_VIDEO_CAPTURE:
         // Add case of other unrelated device types here.
         return;