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

chrome/browser/extensions/api/preference/preference_apitest.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 "base/location.h"
 #include "base/prefs/pref_service.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/thread_task_runner_handle.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 207 matching lines @@
 }
 
 IN_PROC_BROWSER_TEST_F(ExtensionPreferenceApiTest, OnChangeSplit) {
   extensions::ResultCatcher catcher;
   catcher.RestrictToBrowserContext(profile_);
   extensions::ResultCatcher catcher_incognito;
   catcher_incognito.RestrictToBrowserContext(
       profile_->GetOffTheRecordProfile());
 
   // Open an incognito window.
-  ui_test_utils::OpenURLOffTheRecord(profile_, GURL("chrome://newtab/"));
+  OpenURLOffTheRecord(profile_, GURL("chrome://newtab/"));
 
   // changeDefault listeners.
   ExtensionTestMessageListener listener1("changeDefault regular ready", true);
   ExtensionTestMessageListener listener_incognito1(
       "changeDefault incognito ready", true);
 
   // changeIncognitoOnly listeners.
   ExtensionTestMessageListener listener2(
       "changeIncognitoOnly regular ready", true);
   ExtensionTestMessageListener listener_incognito2(
@@ skipping 101 matching lines @@
 
 #if defined(OS_WIN)  // http://crbug.com/477844
 #define MAYBE_DataReductionProxy DISABLED_DataReductionProxy
 #else
 #define MAYBE_DataReductionProxy DataReductionProxy
 #endif
 IN_PROC_BROWSER_TEST_F(ExtensionPreferenceApiTest, MAYBE_DataReductionProxy) {
   EXPECT_TRUE(RunExtensionTest("preference/data_reduction_proxy")) <<
       message_;
 }