Remove InProcessBrowserTest::SetUpOnMainThread() calls.

chrome/browser/ui/blocked_content/popup_blocker_browsertest.cc

 // Copyright 2013 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 <stdint.h>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 98 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(CloseObserver);
 };
 
 class PopupBlockerBrowserTest : public InProcessBrowserTest {
  public:
   PopupBlockerBrowserTest() {}
   ~PopupBlockerBrowserTest() override {}
 
   void SetUpOnMainThread() override {
-    InProcessBrowserTest::SetUpOnMainThread();
-
     host_resolver()->AddRule("*", "127.0.0.1");
     ASSERT_TRUE(embedded_test_server()->Start());
   }
 
   int GetBlockedContentsCount() {
     // Do a round trip to the renderer first to flush any in-flight IPCs to
     // create a to-be-blocked window.
     WebContents* tab = browser()->tab_strip_model()->GetActiveWebContents();
     CHECK(content::ExecuteScript(tab, std::string()));
     PopupBlockerTabHelper* popup_blocker_helper =
@@ skipping 685 matching lines @@
 
   wait_for_new_tab.Wait();
 
   ASSERT_EQ(1u, chrome::GetBrowserCount(browser()->profile()));
   ASSERT_EQ(2, browser()->tab_strip_model()->count());
   // Check that we create the background tab.
   ASSERT_EQ(0, browser()->tab_strip_model()->active_index());
 }
 
 }  // namespace