[Not for review] scoped_refptr move benchmark.

base/memory/ref_counted.cc

Index: base/memory/ref_counted.cc
diff --git a/base/memory/ref_counted.cc b/base/memory/ref_counted.cc
index f5924d0fe76e44672ca24372f93b40d418f46b62..679cbceab13b3a7faae2d86699d81c85b7649c4b 100644
--- a/base/memory/ref_counted.cc
+++ b/base/memory/ref_counted.cc
@@ -51,3 +51,15 @@ bool RefCountedThreadSafeBase::Release() const {
 }  // namespace subtle
 
 }  // namespace base
+
+scoped_refptr<ThreadUnsafe> get_thread_unsafe() {
+  static scoped_refptr<ThreadUnsafe>* g_thread_unsafe =
+      new scoped_refptr<ThreadUnsafe>(new ThreadUnsafe());
+  return *g_thread_unsafe;
+}
+
+scoped_refptr<ThreadSafe> get_thread_safe() {
+  static scoped_refptr<ThreadSafe>* g_thread_safe =
+      new scoped_refptr<ThreadSafe>(new ThreadSafe());
+  return *g_thread_safe;
+}