Migrate base::TaskRunner from Closure to OnceClosure

base/threading/post_task_and_reply_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/threading/post_task_and_reply_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 11 matching lines @@
 
 namespace {
 
 class PostTaskAndReplyTaskRunner : public internal::PostTaskAndReplyImpl {
  public:
   explicit PostTaskAndReplyTaskRunner(TaskRunner* destination)
       : destination_(destination) {}
 
  private:
   bool PostTask(const tracked_objects::Location& from_here,
-                Closure task) override {
+                OnceClosure task) override {
     return destination_->PostTask(from_here, std::move(task));
   }
 
   // Non-owning.
   TaskRunner* const destination_;
 };
 
 class ObjectToDelete : public RefCounted<ObjectToDelete> {
  public:
   // |delete_flag| is set to true when this object is deleted
@@ skipping 60 matching lines @@
   testing::Mock::VerifyAndClear(&mock_object);
   EXPECT_TRUE(delete_flag);
 
   // Expect no pending task in |post_runner| and |reply_runner|.
   EXPECT_FALSE(post_runner->HasPendingTask());
   EXPECT_FALSE(reply_runner->HasPendingTask());
 }
 
 }  // namespace internal
 }  // namespace base