Move ChromeOS login media access logic into a MediaAccessHandler

chrome/browser/chromeos/login/ui/webui_login_view.cc

Index: chrome/browser/chromeos/login/ui/webui_login_view.cc
diff --git a/chrome/browser/chromeos/login/ui/webui_login_view.cc b/chrome/browser/chromeos/login/ui/webui_login_view.cc
index b35069907a21f241e273427d325afe52611a117b..0405532275e788c00223ebbf44f9b734ea6f5578 100644
--- a/chrome/browser/chromeos/login/ui/webui_login_view.cc
+++ b/chrome/browser/chromeos/login/ui/webui_login_view.cc
@@ -29,7 +29,6 @@
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
 #include "chrome/browser/media/webrtc/media_capture_devices_dispatcher.h"
-#include "chrome/browser/media/webrtc/media_stream_devices_controller.h"
 #include "chrome/browser/password_manager/chrome_password_manager_client.h"
 #include "chrome/browser/renderer_preferences_util.h"
 #include "chrome/browser/sessions/session_tab_helper.h"
@@ -477,8 +476,8 @@ void WebUILoginView::RequestMediaAccessPermission(
     const content::MediaStreamRequest& request,
     const content::MediaResponseCallback& callback) {
   // Note: This is only needed for SAML logins.
-  MediaStreamDevicesController::RequestPermissions(web_contents, request,
-                                                   callback);
+  MediaCaptureDevicesDispatcher::GetInstance()->ProcessMediaAccessRequest(
+      web_contents, request, callback, nullptr /* extension */);
 }
 
 bool WebUILoginView::CheckMediaAccessPermission(