Drop ntp_snippets::kStudyName in chrome://flags

components/ntp_snippets/remote/json_request_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 "components/ntp_snippets/remote/json_request.h"
 
 #include <set>
 #include <utility>
 
 #include "base/json/json_reader.h"
@@ skipping 43 matching lines @@
   }
   return base::Value::Equals(actual.get(), expected.get());
 }
 
 }  // namespace
 
 class JsonRequestTest : public testing::Test {
  public:
   JsonRequestTest()
       : params_manager_(
-            ntp_snippets::kStudyName,
+            ntp_snippets::kArticleSuggestionsFeature.name,
             {{"send_top_languages", "true"}, {"send_user_class", "true"}},
             {ntp_snippets::kArticleSuggestionsFeature.name}),
         pref_service_(base::MakeUnique<TestingPrefServiceSimple>()),
         mock_task_runner_(new base::TestMockTimeTaskRunner()),
         clock_(mock_task_runner_->GetMockClock()),
         request_context_getter_(
             new net::TestURLRequestContextGetter(mock_task_runner_.get())) {
     translate::LanguageModel::RegisterProfilePrefs(pref_service_->registry());
   }
 
@@ skipping 170 matching lines @@
                          "  \"topLanguages\": [{"
                          "    \"language\" : \"en\","
                          "    \"frequency\" : 1.0"
                          "  }]"
                          "}"));
 }
 
 }  // namespace internal
 
 }  // namespace ntp_snippets