Remove InProcessBrowserTest::SetUpOnMainThread() calls.

chrome/browser/banners/app_banner_manager_browsertest.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 <vector>
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
@@ skipping 97 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(AppBannerManagerTest);
 };
 
 class AppBannerManagerBrowserTest : public InProcessBrowserTest {
  public:
   void SetUpOnMainThread() override {
     AppBannerSettingsHelper::SetTotalEngagementToTrigger(10);
     SiteEngagementScore::SetParamValuesForTesting();
     ASSERT_TRUE(embedded_test_server()->Start());
-    InProcessBrowserTest::SetUpOnMainThread();
   }
 
   void SetUpCommandLine(base::CommandLine* command_line) override {
     // Make sure app banners are disabled in the browser, otherwise they will
     // interfere with the test.
     command_line->AppendSwitch(switches::kDisableAddToShelf);
   }
 
  protected:
   // Returns a test server URL to page |page_url| with |manifest_url| injected
@@ skipping 399 matching lines @@
   EXPECT_FALSE(manager->will_show());
   EXPECT_FALSE(manager->is_active_or_pending());
   EXPECT_FALSE(manager->need_to_log_status());
 
   histograms.ExpectTotalCount(banners::kMinutesHistogram, 0);
   histograms.ExpectUniqueSample(banners::kInstallableStatusCodeHistogram,
                                 INSUFFICIENT_ENGAGEMENT, 1);
 }
 
 }  // namespace banners