Remove the |max_threads| argument from CreateAndSetSimpleTaskScheduler().

remoting/test/chromoting_test_driver.cc

 // Copyright 2015 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/bind.h"
 #include "base/command_line.h"
 #include "base/feature_list.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 170 matching lines @@
     return base::LaunchUnitTests(
         argc, argv,
         base::Bind(&base::TestSuite::Run, base::Unretained(&test_suite)));
 #else
     return base::LaunchUnitTestsSerially(
         argc, argv,
         base::Bind(&base::TestSuite::Run, base::Unretained(&test_suite)));
 #endif
   }
 
-  const int kMaxBackgroundThreads = 5;
-  base::TaskScheduler::CreateAndSetSimpleTaskScheduler(kMaxBackgroundThreads);
+  base::TaskScheduler::CreateAndSetSimpleTaskScheduler("ChromotingTestDriver");
 
   // Update the logging verbosity level if user specified one.
   std::string verbosity_level(
       command_line->GetSwitchValueASCII(switches::kLoggingLevelSwitchName));
   if (!verbosity_level.empty()) {
     // Turn on logging for the test_driver and remoting components.
     // This switch is parsed during logging::InitLogging.
     command_line->AppendSwitchASCII("vmodule",
                                     "*/remoting/*=" + verbosity_level);
     logging::LoggingSettings logging_settings;
@@ skipping 81 matching lines @@
 #if defined(OS_IOS)
   return base::LaunchUnitTests(
       argc, argv,
       base::Bind(&base::TestSuite::Run, base::Unretained(&test_suite)));
 #else
   return base::LaunchUnitTestsSerially(
       argc, argv,
       base::Bind(&base::TestSuite::Run, base::Unretained(&test_suite)));
 #endif
 }