Migrate base::TaskRunner from Closure to OnceClosure

content/browser/browser_thread_impl.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 CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_
 #define CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 69 matching lines @@
   void UIThreadRun(base::RunLoop* run_loop);
   void DBThreadRun(base::RunLoop* run_loop);
   void FileThreadRun(base::RunLoop* run_loop);
   void FileUserBlockingThreadRun(base::RunLoop* run_loop);
   void ProcessLauncherThreadRun(base::RunLoop* run_loop);
   void CacheThreadRun(base::RunLoop* run_loop);
   void IOThreadRun(base::RunLoop* run_loop);
 
   static bool PostTaskHelper(BrowserThread::ID identifier,
                              const tracked_objects::Location& from_here,
-                             base::Closure task,
+                             base::OnceClosure task,
                              base::TimeDelta delay,
                              bool nestable);
 
   // Common initialization code for the constructors.
   void Initialize();
 
   // For testing.
   friend class ContentTestSuiteBaseListener;
   friend class TestBrowserThreadBundle;
   static void FlushThreadPoolHelperForTesting();
 
   // The identifier of this thread.  Only one thread can exist with a given
   // identifier at a given time.
   ID identifier_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_