Create 2062 release branch for CEF3.

git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/2062@1783 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef_dll/base/cef_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 "include/base/cef_callback_helpers.h"
+
+#include "include/base/cef_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