Rewrite base::Bind into base::BindOnce on trivial cases in base

base/task_scheduler/scheduler_worker_unittest.cc

 // Copyright 2016 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/task_scheduler/scheduler_worker.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <vector>
@@ skipping 154 matching lines @@
 
         // Check if a Sequence should be returned.
         if (outer_->num_sequences_to_create_ == 0)
           return nullptr;
         --outer_->num_sequences_to_create_;
       }
 
       // Create a Sequence with TasksPerSequence() Tasks.
       scoped_refptr<Sequence> sequence(new Sequence);
       for (size_t i = 0; i < outer_->TasksPerSequence(); ++i) {
-        std::unique_ptr<Task> task(new Task(
-            FROM_HERE, Bind(&TaskSchedulerWorkerTest::RunTaskCallback,
-                            Unretained(outer_)),
-            TaskTraits(), TimeDelta()));
+        std::unique_ptr<Task> task(
+            new Task(FROM_HERE,
+                     BindOnce(&TaskSchedulerWorkerTest::RunTaskCallback,
+                              Unretained(outer_)),
+                     TaskTraits(), TimeDelta()));
         EXPECT_TRUE(outer_->task_tracker_.WillPostTask(task.get()));
         sequence->PushTask(std::move(task));
       }
 
       ExpectCallToDidRunTask();
 
       {
         // Add the Sequence to the vector of created Sequences.
         AutoSchedulerLock auto_lock(outer_->lock_);
         outer_->created_sequences_.push_back(sequence);
@@ skipping 238 matching lines @@
       override {
     // Sends one item of work to signal |work_processed_|. On subsequent calls,
     // sends nullptr to indicate there's no more work to be done.
     if (controls_->work_requested_)
       return nullptr;
 
     controls_->work_requested_ = true;
     scoped_refptr<Sequence> sequence(new Sequence);
     std::unique_ptr<Task> task(new Task(
         FROM_HERE,
-        Bind(
+        BindOnce(
             [](WaitableEvent* work_processed, WaitableEvent* work_running) {
               work_processed->Signal();
               work_running->Wait();
             },
             Unretained(&controls_->work_processed_),
             Unretained(&controls_->work_running_)),
         TaskTraits().WithBaseSyncPrimitives().WithShutdownBehavior(
             TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN),
         TimeDelta()));
     EXPECT_TRUE(task_tracker_->WillPostTask(task.get()));
@@ skipping 471 matching lines @@
   // COM library wasn't already initialized on the thread.
   EXPECT_EQ(S_OK, delegate_raw->coinitialize_hresult());
 
   worker->JoinForTesting();
 }
 
 #endif  // defined(OS_WIN)
 
 }  // namespace internal
 }  // namespace base