Disables the context menu in User Manager's reauth dialog

chrome/browser/ui/views/profiles/user_manager_view.cc

Index: chrome/browser/ui/views/profiles/user_manager_view.cc
diff --git a/chrome/browser/ui/views/profiles/user_manager_view.cc b/chrome/browser/ui/views/profiles/user_manager_view.cc
index 8f9374979c0ffe71f73b0f1eb923c6b13047f1fa..0408361558647d54001a3be68b23a42aca0adef2 100644
--- a/chrome/browser/ui/views/profiles/user_manager_view.cc
+++ b/chrome/browser/ui/views/profiles/user_manager_view.cc
@@ -66,14 +66,14 @@ ReauthDelegate::ReauthDelegate(UserManagerView* parent,
                                views::WebView* web_view,
                                const std::string& email_address,
                                signin_metrics::Reason reason)
-    : UserManager::ReauthDialogObserver(web_view->GetWebContents(),
-                                        email_address),
-      parent_(parent),
+    : parent_(parent),
       web_view_(web_view),
       email_address_(email_address) {
   AddChildView(web_view_);
   SetLayoutManager(new views::FillLayout());
 
+  web_view->GetWebContents()->SetDelegate(this);
+
   // Load the re-auth URL, prepopulated with the user's email address.
   // Add the index of the profile to the URL so that the inline login page
   // knows which profile to load and update the credentials.