Switch from TestBrowserThread to TestBrowserThreadBundle in chrome.

chrome/browser/media/webrtc/webrtc_log_util_unittest.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 "chrome/browser/media/webrtc/webrtc_log_util.h"
+
 #include "base/files/file_enumerator.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
-#include "base/message_loop/message_loop.h"
 #include "base/time/time.h"
-#include "chrome/browser/media/webrtc/webrtc_log_util.h"
-#include "content/public/test/test_browser_thread.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 const int kExpectedDaysToKeepLogFiles = 5;
 
 class WebRtcLogUtilTest : public testing::Test {
  public:
-  WebRtcLogUtilTest()
-      : file_thread_(content::BrowserThread::FILE, &message_loop_) {}
+  WebRtcLogUtilTest() = default;
 
   void SetUp() override {
     // Create three files. One with modified date as of now, one with date one
     // day younger than the keep limit, one with date one day older than the
     // limit. The two former are expected to be kept and the last to be deleted
     // when deleting old logs.
     ASSERT_TRUE(dir_.CreateUniqueTempDir());
     base::FilePath file;
     ASSERT_TRUE(CreateTemporaryFileInDir(dir_.GetPath(), &file));
     ASSERT_TRUE(CreateTemporaryFileInDir(dir_.GetPath(), &file));
@@ skipping 14 matching lines @@
     int file_counter = 0;
     for (base::FilePath name = files.Next(); !name.empty();
          name = files.Next()) {
       EXPECT_LT(base::Time::Now() - files.GetInfo().GetLastModifiedTime(),
                 base::TimeDelta::FromDays(kExpectedDaysToKeepLogFiles));
       ++file_counter;
     }
     EXPECT_EQ(expected_files, file_counter);
   }
 
-  base::MessageLoopForUI message_loop_;
-  content::TestBrowserThread file_thread_;
+  content::TestBrowserThreadBundle test_browser_thread_bundle_;
   base::ScopedTempDir dir_;
 };
 
 TEST_F(WebRtcLogUtilTest, DeleteOldWebRtcLogFiles) {
   WebRtcLogUtil::DeleteOldWebRtcLogFiles(dir_.GetPath());
   VerifyFiles(2);
 }
 
 TEST_F(WebRtcLogUtilTest, DeleteOldAndRecentWebRtcLogFiles) {
   base::Time time_begin_delete =
       base::Time::Now() - base::TimeDelta::FromDays(1);
   WebRtcLogUtil::DeleteOldAndRecentWebRtcLogFiles(dir_.GetPath(),
                                                   time_begin_delete);
   VerifyFiles(1);
 }