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

base/task_scheduler/task_scheduler_impl_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/task_scheduler_impl.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 224 matching lines @@
 }  // namespace
 
 // Verifies that a Task posted via PostDelayedTaskWithTraits with parameterized
 // TaskTraits and no delay runs on a thread with the expected priority and I/O
 // restrictions. The ExecutionMode parameter is ignored by this test.
 TEST_P(TaskSchedulerImplTest, PostDelayedTaskWithTraitsNoDelay) {
   WaitableEvent task_ran(WaitableEvent::ResetPolicy::MANUAL,
                          WaitableEvent::InitialState::NOT_SIGNALED);
   scheduler_->PostDelayedTaskWithTraits(
       FROM_HERE, GetParam().traits,
-      Bind(&VerifyTaskEnvironmentAndSignalEvent, GetParam().traits,
-           Unretained(&task_ran)),
+      BindOnce(&VerifyTaskEnvironmentAndSignalEvent, GetParam().traits,
+               Unretained(&task_ran)),
       TimeDelta());
   task_ran.Wait();
 }
 
 // Verifies that a Task posted via PostDelayedTaskWithTraits with parameterized
 // TaskTraits and a non-zero delay runs on a thread with the expected priority
 // and I/O restrictions after the delay expires. The ExecutionMode parameter is
 // ignored by this test.
 TEST_P(TaskSchedulerImplTest, PostDelayedTaskWithTraitsWithDelay) {
   WaitableEvent task_ran(WaitableEvent::ResetPolicy::MANUAL,
                          WaitableEvent::InitialState::NOT_SIGNALED);
   scheduler_->PostDelayedTaskWithTraits(
       FROM_HERE, GetParam().traits,
-      Bind(&VerifyTimeAndTaskEnvironmentAndSignalEvent, GetParam().traits,
-           TimeTicks::Now() + TestTimeouts::tiny_timeout(),
-           Unretained(&task_ran)),
+      BindOnce(&VerifyTimeAndTaskEnvironmentAndSignalEvent, GetParam().traits,
+               TimeTicks::Now() + TestTimeouts::tiny_timeout(),
+               Unretained(&task_ran)),
       TestTimeouts::tiny_timeout());
   task_ran.Wait();
 }
 
 // Verifies that Tasks posted via a TaskRunner with parameterized TaskTraits and
 // ExecutionMode run on a thread with the expected priority and I/O restrictions
 // and respect the characteristics of their ExecutionMode.
 TEST_P(TaskSchedulerImplTest, PostTasksViaTaskRunner) {
   test::TestTaskFactory factory(
       CreateTaskRunnerWithTraitsAndExecutionMode(
@@ skipping 58 matching lines @@
 TEST_F(TaskSchedulerImplTest, SequencedRunsTasksOnCurrentThread) {
   auto single_thread_task_runner =
       scheduler_->CreateSingleThreadTaskRunnerWithTraits(TaskTraits());
   auto sequenced_task_runner =
       scheduler_->CreateSequencedTaskRunnerWithTraits(TaskTraits());
 
   WaitableEvent task_ran(WaitableEvent::ResetPolicy::MANUAL,
                          WaitableEvent::InitialState::NOT_SIGNALED);
   single_thread_task_runner->PostTask(
       FROM_HERE,
-      Bind(
+      BindOnce(
           [](scoped_refptr<TaskRunner> sequenced_task_runner,
              WaitableEvent* task_ran) {
             EXPECT_FALSE(sequenced_task_runner->RunsTasksOnCurrentThread());
             task_ran->Signal();
           },
           sequenced_task_runner, Unretained(&task_ran)));
   task_ran.Wait();
 }
 
 // Verify that the RunsTasksOnCurrentThread() method of a SingleThreadTaskRunner
 // returns false when called from a task that isn't part of the sequence.
 TEST_F(TaskSchedulerImplTest, SingleThreadRunsTasksOnCurrentThread) {
   auto sequenced_task_runner =
       scheduler_->CreateSequencedTaskRunnerWithTraits(TaskTraits());
   auto single_thread_task_runner =
       scheduler_->CreateSingleThreadTaskRunnerWithTraits(TaskTraits());
 
   WaitableEvent task_ran(WaitableEvent::ResetPolicy::MANUAL,
                          WaitableEvent::InitialState::NOT_SIGNALED);
   sequenced_task_runner->PostTask(
       FROM_HERE,
-      Bind(
+      BindOnce(
           [](scoped_refptr<TaskRunner> single_thread_task_runner,
              WaitableEvent* task_ran) {
             EXPECT_FALSE(single_thread_task_runner->RunsTasksOnCurrentThread());
             task_ran->Signal();
           },
           single_thread_task_runner, Unretained(&task_ran)));
   task_ran.Wait();
 }
 
 #if defined(OS_WIN)
@@ skipping 15 matching lines @@
             }
             task_ran->Signal();
           },
           com_sta_task_runner, Unretained(&task_ran)));
   task_ran.Wait();
 }
 #endif  // defined(OS_WIN)
 
 }  // namespace internal
 }  // namespace base