[CodeHealthRotation] Migrate browser/ui/user_manager.cc from base::Bind to base::BindRepeating

Bug: 1007635
Change-Id: I1664b1ae0e67df52b0553a13e310ea5d42c5d1dd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2520623Reviewed-by: David Roger <droger@chromium.org>
Commit-Queue: Charlie Hu <chenleihu@google.com>
Cr-Commit-Position: refs/heads/master@{#824976}

chrome/browser/ui/user_manager.cc

@@ -40,7 +40,7 @@ void UserManagerProfileDialog::BaseDialogDelegate::LoadingStateChanged(
       guest_view::GuestViewManager::FromBrowserContext(
           source->GetBrowserContext());
   if (manager)
-    manager->ForEachGuest(source, base::Bind(&AddToSet, &content_set));
+    manager->ForEachGuest(source, base::BindRepeating(&AddToSet, &content_set));
   DCHECK_LE(content_set.size(), 1U);
   if (!content_set.empty()) {
     guest_web_contents_ = *content_set.begin();