permissions: handle request ids for permissions in permission manager

chromecast/browser/cast_permission_manager.h

Index: chromecast/browser/cast_permission_manager.h
diff --git a/chromecast/browser/cast_permission_manager.h b/chromecast/browser/cast_permission_manager.h
index 237eff99306cbfae47104e4bfee32ba0a356e779..5eab5a18d0a89d575b2fd38b69eeacdca138d320 100644
--- a/chromecast/browser/cast_permission_manager.h
+++ b/chromecast/browser/cast_permission_manager.h
@@ -18,10 +18,9 @@ class CastPermissionManager : public content::PermissionManager {
   ~CastPermissionManager() override;
 
   // content::PermissionManager implementation:
-  void RequestPermission(
+  int RequestPermission(
       content::PermissionType permission,
       content::RenderFrameHost* render_frame_host,
-      int request_id,
       const GURL& requesting_origin,
       bool user_gesture,
       const base::Callback<void(content::PermissionStatus)>& callback) override;