Remove InProcessBrowserTest::SetUpOnMainThread() calls.

chrome/browser/notifications/platform_notification_service_interactive_uitest.cc

 // Copyright 2014 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 <string>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/feature_list.h"
@@ skipping 151 matching lines @@
   InProcessBrowserTest::SetUp();
 }
 
 void PlatformNotificationServiceBrowserTest::SetUpOnMainThread() {
   SiteEngagementScore::SetParamValuesForTesting();
   engagement_service_ = SiteEngagementService::Get(browser()->profile());
   NavigateToTestPage(test_page_url_);
   display_service_.reset(
       new MessageCenterDisplayService(browser()->profile(), ui_manager_.get()));
   service()->SetNotificationDisplayServiceForTesting(display_service_.get());
-  InProcessBrowserTest::SetUpOnMainThread();
 }
 
 void PlatformNotificationServiceBrowserTest::TearDown() {
   service()->SetNotificationDisplayServiceForTesting(nullptr);
 }
 
 void PlatformNotificationServiceBrowserTest::
     GrantNotificationPermissionForTest() const {
   GURL origin = TestPageUrl().GetOrigin();
 
@@ skipping 673 matching lines @@
       RunScript("DisplayPersistentAllOptionsNotification()", &script_result));
   EXPECT_EQ("ok", script_result);
 
   ASSERT_EQ(1u, ui_manager()->GetNotificationCount());
   const Notification& notification = ui_manager()->GetNotificationAt(0);
 
   // Since the kNotificationContentImage kill switch has disabled images, the
   // notification should be shown without an image.
   EXPECT_TRUE(notification.image().IsEmpty());
 }