Remove DHECiphers feature flag.

components/ssl_config/ssl_config_service_manager_pref_unittest.cc

 // Copyright (c) 2012 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 <memory>
 #include <utility>
 
 #include "base/feature_list.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 161 matching lines @@
   ASSERT_TRUE(config_manager.get());
   scoped_refptr<SSLConfigService> config_service(config_manager->Get());
   ASSERT_TRUE(config_service.get());
 
   SSLConfig ssl_config;
   config_service->GetSSLConfig(&ssl_config);
   // The command-line option must not have been honored.
   EXPECT_LE(net::SSL_PROTOCOL_VERSION_TLS1, ssl_config.version_min);
 }
 
-// Tests that DHE may be re-enabled via features.
-TEST_F(SSLConfigServiceManagerPrefTest, DHEFeature) {
-  // Toggle the feature.
-  base::test::ScopedFeatureList scoped_feature_list;
-  scoped_feature_list.InitFromCommandLine("DHECiphers", std::string());
-
-  TestingPrefServiceSimple local_state;
-  SSLConfigServiceManager::RegisterPrefs(local_state.registry());
-
-  std::unique_ptr<SSLConfigServiceManager> config_manager(
-      SSLConfigServiceManager::CreateDefaultManager(
-          &local_state, base::ThreadTaskRunnerHandle::Get()));
-  scoped_refptr<SSLConfigService> config_service(config_manager->Get());
-  ASSERT_TRUE(config_service.get());
-
-  // The feature should have switched the default version_fallback_min value.
-  SSLConfig ssl_config;
-  config_service->GetSSLConfig(&ssl_config);
-  EXPECT_TRUE(ssl_config.dhe_enabled);
-}
-
 // Tests that TLS 1.3 may be enabled via features.
 TEST_F(SSLConfigServiceManagerPrefTest, TLS13Feature) {
   // Toggle the feature.
   base::test::ScopedFeatureList scoped_feature_list;
   scoped_feature_list.InitFromCommandLine("NegotiateTLS13", std::string());
 
   TestingPrefServiceSimple local_state;
   SSLConfigServiceManager::RegisterPrefs(local_state.registry());
 
   std::unique_ptr<SSLConfigServiceManager> config_manager(
       SSLConfigServiceManager::CreateDefaultManager(
           &local_state, base::ThreadTaskRunnerHandle::Get()));
   scoped_refptr<SSLConfigService> config_service(config_manager->Get());
   ASSERT_TRUE(config_service.get());
 
   // The feature should have switched the default version_fallback_min value.
   SSLConfig ssl_config;
   config_service->GetSSLConfig(&ssl_config);
   EXPECT_EQ(net::SSL_PROTOCOL_VERSION_TLS1_3, ssl_config.version_max);
 }