Remove deprecated priority-less SequencedWorkerPool constructor.

base/threading/sequenced_worker_pool.h

 // 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.
 
 #ifndef BASE_THREADING_SEQUENCED_WORKER_POOL_H_
 #define BASE_THREADING_SEQUENCED_WORKER_POOL_H_
 
 #include <stddef.h>
 
 #include <cstddef>
@@ skipping 167 matching lines @@
 
   // Pass the maximum number of threads (they will be lazily created as needed)
   // and a prefix for the thread name to aid in debugging. |task_priority| will
   // be used to hint base::TaskScheduler for an experiment in which all
   // SequencedWorkerPool tasks will be redirected to it in processes where a
   // base::TaskScheduler was instantiated.
   SequencedWorkerPool(size_t max_threads,
                       const std::string& thread_name_prefix,
                       base::TaskPriority task_priority);
 
-  // Deprecated, use the above constructor with |task_priority| instead.
-  // TODO(gab): Cleanup last few use cases of this before running the
-  // aforementioned base::TaskScheduler experiment (or make sure this
-  // constructor results in callers being opted out of the experiment).
-  SequencedWorkerPool(size_t max_threads,
-                      const std::string& thread_name_prefix);
-
   // Like above, but with |observer| for testing.  Does not take ownership of
   // |observer|.
   SequencedWorkerPool(size_t max_threads,
                       const std::string& thread_name_prefix,
                       base::TaskPriority task_priority,
                       TestingObserver* observer);
 
   // Returns the sequence token associated with the given name. Calling this
   // function multiple times with the same string will always produce the
   // same sequence token. If the name has not been used before, a new token
@@ skipping 169 matching lines @@
   // Avoid pulling in too many headers by putting (almost) everything
   // into |inner_|.
   const std::unique_ptr<Inner> inner_;
 
   DISALLOW_COPY_AND_ASSIGN(SequencedWorkerPool);
 };
 
 }  // namespace base
 
 #endif  // BASE_THREADING_SEQUENCED_WORKER_POOL_H_