Remove pointless InProcessBrowserTest calls.

chrome/browser/push_messaging/push_messaging_browsertest.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 <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <string>
 
@@ skipping 127 matching lines @@
 
     notification_manager_.reset(new StubNotificationUIManager);
 
     SiteEngagementScore::SetParamValuesForTesting();
     InProcessBrowserTest::SetUp();
   }
   void SetUpCommandLine(base::CommandLine* command_line) override {
     // Enable experimental features for subscription restrictions.
     command_line->AppendSwitch(
         switches::kEnableExperimentalWebPlatformFeatures);
-    InProcessBrowserTest::SetUpCommandLine(command_line);
   }
 
   // InProcessBrowserTest:
   void SetUpOnMainThread() override {
     gcm_service_ = static_cast<gcm::FakeGCMProfileService*>(
         gcm::GCMProfileServiceFactory::GetInstance()->SetTestingFactoryAndUse(
             GetBrowser()->profile(), &gcm::FakeGCMProfileService::Build));
     gcm_driver_ = static_cast<instance_id::FakeGCMDriverForInstanceID*>(
         gcm_service_->driver());
 
@@ skipping 2245 matching lines @@
   push_service()->SetUnsubscribeCallbackForTesting(run_loop.QuitClosure());
   ASSERT_TRUE(RunScript("unsubscribePush()", &script_result));
   EXPECT_EQ("unsubscribe result: true", script_result);
   // Background mode is only guaranteed to have updated once the unsubscribe
   // callback for testing has been run (PushSubscription.unsubscribe() usually
   // resolves before that, in order to avoid blocking on network retries etc).
   run_loop.Run();
   ASSERT_FALSE(background_mode_manager->IsBackgroundModeActive());
 }
 #endif  // BUILDFLAG(ENABLE_BACKGROUND) && !defined(OS_CHROMEOS)