Move ScopedClosureRunner to callback_helpers, add Reset.
BUG=none
TEST=none
[email protected]
Review URL: https://chromiumcodereview.appspot.com/23514018
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@220473 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/base/callback_helpers.cc b/base/callback_helpers.cc
new file mode 100644
index 0000000..ef02b2b
--- /dev/null
+++ b/base/callback_helpers.cc
@@ -0,0 +1,42 @@
+// Copyright 2013 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/callback_helpers.h"
+
+#include "base/callback.h"
+
+namespace base {
+
+ScopedClosureRunner::ScopedClosureRunner() {
+}
+
+ScopedClosureRunner::ScopedClosureRunner(const Closure& closure)
+ : closure_(closure) {
+}
+
+ScopedClosureRunner::~ScopedClosureRunner() {
+ if (!closure_.is_null())
+ closure_.Run();
+}
+
+void ScopedClosureRunner::Reset() {
+ Closure old_closure = Release();
+ if (!old_closure.is_null())
+ old_closure.Run();
+}
+
+void ScopedClosureRunner::Reset(const Closure& closure) {
+ Closure old_closure = Release();
+ closure_ = closure;
+ if (!old_closure.is_null())
+ old_closure.Run();
+}
+
+Closure ScopedClosureRunner::Release() {
+ Closure result = closure_;
+ closure_.Reset();
+ return result;
+}
+
+} // namespace base
