Index: base/sys_info_internal.h |
diff --git a/base/sys_info_internal.h b/base/sys_info_internal.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..e7674d5c09fc2f9b624c018ef81d739a19e13202 |
--- /dev/null |
+++ b/base/sys_info_internal.h |
@@ -0,0 +1,34 @@ |
+// 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. |
+ |
+#ifndef BASE_SYS_INFO_INTERNAL_H_ |
+#define BASE_SYS_INFO_INTERNAL_H_ |
+ |
+#include "base/basictypes.h" |
+ |
+namespace base { |
+ |
+namespace internal { |
+ |
+template<typename T, T (*F)(void)> |
+class LazySysInfoValue { |
+ public: |
+ LazySysInfoValue() |
+ : value_(F()) { } |
+ |
+ ~LazySysInfoValue() { } |
+ |
+ T value() { return value_; } |
+ |
+ private: |
+ const T value_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(LazySysInfoValue); |
+}; |
+ |
+} // namespace internal |
+ |
+} // namespace base |
+ |
+#endif // BASE_SYS_INFO_INTERNAL_H_ |