[Extensions] Expand testing overrides for extension warning bubbles

chrome/browser/prerender/prerender_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.
 
 #include <deque>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 3428 matching lines @@
   void SetUpInProcessBrowserTestFixture() override {
     PrerenderBrowserTest::SetUpInProcessBrowserTestFixture();
     ExtensionApiTest::SetUpInProcessBrowserTestFixture();
   }
 
   void TearDownInProcessBrowserTestFixture() override {
     PrerenderBrowserTest::TearDownInProcessBrowserTestFixture();
     ExtensionApiTest::TearDownInProcessBrowserTestFixture();
   }
 
+  void TearDownOnMainThread() override {
+    PrerenderBrowserTest::TearDownOnMainThread();
+    ExtensionApiTest::TearDownOnMainThread();
+  }
+
   void SetUpOnMainThread() override {
     PrerenderBrowserTest::SetUpOnMainThread();
   }
 };
 
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTestWithExtensions, WebNavigation) {
   ASSERT_TRUE(StartSpawnedTestServer());
   extensions::FrameNavigationState::set_allow_extension_scheme(true);
 
   // Wait for the extension to set itself up and return control to us.
@@ skipping 682 matching lines @@
 
   NavigateToDestURL();
   EXPECT_EQ(1U, task_manager.tasks().size());
 }
 
 }  // namespace
 
 #endif  // defined(ENABLE_TASK_MANAGER)
 
 }  // namespace prerender