Replace Closure in TaskRunner::PostTask with OneShotCallback

content/browser/browser_thread_impl.h

Index: content/browser/browser_thread_impl.h
diff --git a/content/browser/browser_thread_impl.h b/content/browser/browser_thread_impl.h
index e86f4ec907a76f9fe3aab439db527f4d94f94935..02576941f69828833e16703206e3ed4ed62a055b 100644
--- a/content/browser/browser_thread_impl.h
+++ b/content/browser/browser_thread_impl.h
@@ -53,12 +53,11 @@ class CONTENT_EXPORT BrowserThreadImpl : public BrowserThread,
   void CacheThreadRun(base::RunLoop* run_loop);
   void IOThreadRun(base::RunLoop* run_loop);
 
-  static bool PostTaskHelper(
-      BrowserThread::ID identifier,
-      const tracked_objects::Location& from_here,
-      const base::Closure& task,
-      base::TimeDelta delay,
-      bool nestable);
+  static bool PostTaskHelper(BrowserThread::ID identifier,
+                             const tracked_objects::Location& from_here,
+                             base::OnceClosure task,
+                             base::TimeDelta delay,
+                             bool nestable);
 
   // Common initialization code for the constructors.
   void Initialize();