Cleanup: Remove CategoryStatus::SIGNED_OUT

chrome/browser/ntp_snippets/download_suggestions_provider_unittest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ntp_snippets/download_suggestions_provider.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
@@ skipping 58 matching lines @@
       break;
     case CategoryStatus::NOT_PROVIDED:
       os << "NOT_PROVIDED";
       break;
     case CategoryStatus::ALL_SUGGESTIONS_EXPLICITLY_DISABLED:
       os << "ALL_SUGGESTIONS_EXPLICITLY_DISABLED";
       break;
     case CategoryStatus::CATEGORY_EXPLICITLY_DISABLED:
       os << "CATEGORY_EXPLICITLY_DISABLED";
       break;
-    case CategoryStatus::SIGNED_OUT:
-      os << "SIGNED_OUT";
-      break;
     case CategoryStatus::LOADING_ERROR:
       os << "LOADING_ERROR";
       break;
   }
   return os;
 }
 
 }  // namespace ntp_snippets
 
 namespace {
@@ skipping 1015 matching lines @@
   // it has been visited recently.
   EXPECT_CALL(
       *observer(),
       OnNewSuggestions(_, downloads_category(),
                        UnorderedElementsAre(HasUrl("http://dummy.com/0"))));
   auto test_clock = base::MakeUnique<base::SimpleTestClock>();
   test_clock->SetNow(now);
   CreateProvider(/*show_assets=*/false, /*show_offline_pages=*/true,
                  std::move(test_clock));
 }