Add Reset to ScopedClosureRunner.

base/bind_helpers.cc

 // 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.
 
 #include "base/bind_helpers.h"
 
 #include "base/callback.h"
 
 namespace base {
 
 void DoNothing() {
 }
 
-ScopedClosureRunner::ScopedClosureRunner(const Closure& closure)
-    : closure_(closure) {
-}
-
-ScopedClosureRunner::~ScopedClosureRunner() {
-  if (!closure_.is_null())
-    closure_.Run();
-}
-
-Closure ScopedClosureRunner::Release() {
-  Closure result = closure_;
-  closure_.Reset();
-  return result;
-}
-
 }  // namespace base