Remove deprecated priority-less SequencedWorkerPool constructor.

base/threading/sequenced_worker_pool.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/threading/sequenced_worker_pool.h"
 
 #include <stdint.h>
 
 #include <list>
 #include <map>
@@ skipping 1202 matching lines @@
                                          const std::string& thread_name_prefix,
                                          base::TaskPriority task_priority)
     : constructor_task_runner_(ThreadTaskRunnerHandle::Get()),
       inner_(new Inner(this,
                        max_threads,
                        thread_name_prefix,
                        task_priority,
                        NULL)) {}
 
 SequencedWorkerPool::SequencedWorkerPool(size_t max_threads,
-                                         const std::string& thread_name_prefix)
-    : SequencedWorkerPool(max_threads,
-                          thread_name_prefix,
-                          base::TaskPriority::USER_VISIBLE) {}
-
-SequencedWorkerPool::SequencedWorkerPool(size_t max_threads,
                                          const std::string& thread_name_prefix,
                                          base::TaskPriority task_priority,
                                          TestingObserver* observer)
     : constructor_task_runner_(ThreadTaskRunnerHandle::Get()),
       inner_(new Inner(this,
                        max_threads,
                        thread_name_prefix,
                        task_priority,
                        observer)) {}
 
@@ skipping 125 matching lines @@
 void SequencedWorkerPool::Shutdown(int max_new_blocking_tasks_after_shutdown) {
   DCHECK(constructor_task_runner_->BelongsToCurrentThread());
   inner_->Shutdown(max_new_blocking_tasks_after_shutdown);
 }
 
 bool SequencedWorkerPool::IsShutdownInProgress() {
   return inner_->IsShutdownInProgress();
 }
 
 }  // namespace base