Revert of Switch to STA mode for audio thread and WASAPI I/O streams.

media/audio/win/core_audio_util_win.cc

Index: media/audio/win/core_audio_util_win.cc
diff --git a/media/audio/win/core_audio_util_win.cc b/media/audio/win/core_audio_util_win.cc
index 4f72564ee5a6863fe675fe47db6abf7c249aec84..53530dfc998382d46ef6cbaf26031d1493ee0a79 100644
--- a/media/audio/win/core_audio_util_win.cc
+++ b/media/audio/win/core_audio_util_win.cc
@@ -178,12 +178,10 @@
     // fail with CO_E_NOTINITIALIZED in combination with certain 3rd party
     // modules. Calling CoInitializeEx is an attempt to resolve the reported
     // issues. See http://crbug.com/378465 for details.
-    hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
+    hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
     if (SUCCEEDED(hr)) {
-      hr = device_enumerator.CreateInstance(__uuidof(MMDeviceEnumerator), NULL,
-                                            CLSCTX_INPROC_SERVER);
-    } else {
-      LOG(ERROR) << "CoCreateInstance still failed! " << std::hex << hr;
+      hr = device_enumerator.CreateInstance(__uuidof(MMDeviceEnumerator),
+                                            NULL, CLSCTX_INPROC_SERVER);
     }
   }
   return device_enumerator;