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

content/browser/renderer_host/media/video_capture_manager.h

Index: content/browser/renderer_host/media/video_capture_manager.h
diff --git a/content/browser/renderer_host/media/video_capture_manager.h b/content/browser/renderer_host/media/video_capture_manager.h
index 3b0b46676825abebafb481b0a452ae11f8b7150a..e37170bb39922467cf7699249313ea6a5323022a 100644
--- a/content/browser/renderer_host/media/video_capture_manager.h
+++ b/content/browser/renderer_host/media/video_capture_manager.h
@@ -134,18 +134,12 @@ class CONTENT_EXPORT VideoCaptureManager : public MediaStreamProvider {
     return video_capture_device_factory_.get();
   }
 
-#if defined(OS_WIN)
-  void set_device_task_runner(
-      const scoped_refptr<base::SingleThreadTaskRunner>& device_task_runner) {
-    device_task_runner_ = device_task_runner;
-  }
-#endif
-
   // Returns the SingleThreadTaskRunner where devices are enumerated on and
   // started.
   scoped_refptr<base::SingleThreadTaskRunner>& device_task_runner() {
     return device_task_runner_;
   }
+
  private:
   ~VideoCaptureManager() override;
   class DeviceEntry;