lobster: use overridden lobster status

Previously crrev/c/6217561 has added the flag to override lobster system
state.

This CL uses the overridden value in determining whether to use the
consent screen again, or continue to show the lobster result UI.

Bug: b:348279617
Change-Id: If32dab4e339de961e77130d7b3596863f3442c20
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6217616
Reviewed-by: Michelle Chen <michellegc@google.com>
Auto-Submit: Chuong Ho <hdchuong@chromium.org>
Commit-Queue: Chuong Ho <hdchuong@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1414750}

ash/lobster/lobster_controller.cc

@@ -115,7 +115,7 @@ void LobsterController::StartSession(std::unique_ptr<LobsterClient> client,
     lobster_status = LobsterStatus::kConsentNeeded;
   }
 
-  switch (lobster_client_ptr->GetSystemState().status) {
+  switch (lobster_status) {
     case LobsterStatus::kConsentNeeded:
       active_session_->ShowDisclaimerUIAndCacheQuery(query);
       return;