Remove InProcessBrowserTest::SetUpOnMainThread() calls.

chrome/browser/safe_browsing/safe_browsing_service_browsertest.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.
 //
 // This test creates a safebrowsing service using test safebrowsing database
 // and a test protocol manager. It is used to test logics in safebrowsing
 // service.
 
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
 
@@ skipping 527 matching lines @@
     // This test will fill up the database using testing prefixes
     // and urls.
     command_line->AppendSwitch(safe_browsing::switches::kSbDisableAutoUpdate);
 #if defined(OS_CHROMEOS)
     command_line->AppendSwitch(
         chromeos::switches::kIgnoreUserProfileMappingForTests);
 #endif
   }
 
   void SetUpOnMainThread() override {
-    InProcessBrowserTest::SetUpOnMainThread();
     g_browser_process->safe_browsing_service()->ui_manager()->AddObserver(
         &observer_);
   }
 
   void TearDownOnMainThread() override {
     g_browser_process->safe_browsing_service()->ui_manager()->RemoveObserver(
         &observer_);
     InProcessBrowserTest::TearDownOnMainThread();
   }
 
@@ skipping 1797 matching lines @@
 }
 
 INSTANTIATE_TEST_CASE_P(
     MaybeSetMetadata,
     V4SafeBrowsingServiceMetadataTest,
     testing::Values(ThreatPatternType::NONE,
                     ThreatPatternType::MALWARE_LANDING,
                     ThreatPatternType::MALWARE_DISTRIBUTION));
 
 }  // namespace safe_browsing