Introduce MediaDevicesPermissionChecker.

content/browser/renderer_host/media/audio_renderer_host.h

Index: content/browser/renderer_host/media/audio_renderer_host.h
diff --git a/content/browser/renderer_host/media/audio_renderer_host.h b/content/browser/renderer_host/media/audio_renderer_host.h
index afdb31b2b2ab6889a8200f562b056271e6af7ad3..f1e2d2bf27a713c5e5080d6da485f7042137711c 100644
--- a/content/browser/renderer_host/media/audio_renderer_host.h
+++ b/content/browser/renderer_host/media/audio_renderer_host.h
@@ -76,7 +76,6 @@ namespace content {
 class AudioMirroringManager;
 class MediaInternals;
 class MediaStreamManager;
-class MediaStreamUIProxy;
 class ResourceContext;
 
 class CONTENT_EXPORT AudioRendererHost : public BrowserMessageFilter {
@@ -209,8 +208,7 @@ class CONTENT_EXPORT AudioRendererHost : public BrowserMessageFilter {
                                base::TimeTicks auth_start_time);
 
   // Proceed with device authorization after checking permissions.
-  void AccessChecked(std::unique_ptr<MediaStreamUIProxy> ui_proxy,
-                     const std::string& device_id,
+  void AccessChecked(const std::string& device_id,
                      const url::Origin& security_origin,
                      int stream_id,
                      base::TimeTicks auth_start_time,