mac: Flush the autorelease pool after making a browser window in browser tests.

chrome/browser/profiles/host_zoom_map_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 "content/public/browser/host_zoom_map.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 203 matching lines @@
  private:
   DISALLOW_COPY_AND_ASSIGN(HostZoomMapSanitizationBrowserTest);
 };
 
 // Regression test for crbug.com/437392
 IN_PROC_BROWSER_TEST_F(HostZoomMapBrowserTest, ZoomEventsWorkForOffTheRecord) {
   GURL test_url(url::kAboutBlankURL);
   std::string test_host(test_url.host());
   std::string test_scheme(test_url.scheme());
   Browser* incognito_browser =
-      ui_test_utils::OpenURLOffTheRecord(browser()->profile(), test_url);
+      OpenURLOffTheRecord(browser()->profile(), test_url);
 
   content::WebContents* web_contents =
       incognito_browser->tab_strip_model()->GetActiveWebContents();
 
   content::BrowserContext* context = web_contents->GetBrowserContext();
   EXPECT_TRUE(context->IsOffTheRecord());
   ZoomLevelChangeObserver observer(context);
   HostZoomMap* host_zoom_map = HostZoomMap::GetForWebContents(web_contents);
 
   double new_zoom_level =
@@ skipping 276 matching lines @@
       HostZoomMap::GetDefaultForBrowserContext(child_profile);
   ASSERT_TRUE(parent_host_zoom_map);
   ASSERT_TRUE(child_host_zoom_map);
   EXPECT_NE(parent_host_zoom_map, child_host_zoom_map);
   EXPECT_NE(new_default_zoom_level, child_host_zoom_map->GetDefaultZoomLevel());
 
   parent_profile->GetZoomLevelPrefs()->SetDefaultZoomLevelPref(
       new_default_zoom_level);
   EXPECT_EQ(new_default_zoom_level, child_host_zoom_map->GetDefaultZoomLevel());
 }