Simplify how TestChromeWebUIControllerFactory is registered now that multiple WebUIControllerFactor…

chrome/browser/ui/webui/ntp/most_visited_browsertest.cc

 // Copyright (c) 2011 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 "base/file_path.h"
-#include "chrome/browser/ui/webui/web_ui_browsertest.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/ui_test_utils.h"
+#include "chrome/test/base/web_ui_browsertest.h"
 #include "googleurl/src/gurl.h"
 
 class MostVisitedWebUITest : public WebUIBrowserTest {
  public:
   virtual ~MostVisitedWebUITest() {}
 
   virtual void SetUpInProcessBrowserTestFixture() {
     WebUIBrowserTest::SetUpInProcessBrowserTestFixture();
     AddLibrary(FilePath(FILE_PATH_LITERAL("most_visited_page_test.js")));
   }
 
   virtual void SetUpOnMainThread() {
+    WebUIBrowserTest::SetUpOnMainThread();
     ui_test_utils::NavigateToURL(browser(), GURL(chrome::kChromeUINewTabURL));
   }
 };
 
 WEB_UI_UNITTEST_F(MostVisitedWebUITest, refreshDataBasic);
 WEB_UI_UNITTEST_F(MostVisitedWebUITest, refreshDataOrdering);
 WEB_UI_UNITTEST_F(MostVisitedWebUITest, refreshDataPinning);