Add Singleton traits for a "leaky singleton" - one that does

not clean up at exit.

Review URL: http://codereview.chromium.org/13069

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@6303 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 10 insertions, 0 deletions

diff --git a/base/singleton.h b/base/singleton.h
index c6a1685..00cd448 100644
--- a/base/singleton.h
+++ b/base/singleton.h
@@ -31,6 +31,16 @@ struct DefaultSingletonTraits {
   static const bool kRegisterAtExit = true;
 };
 
+
+// Alternate traits for use with the Singleton<Type>.  Identical to
+// DefaultSingletonTraits except that the Singleton will not be cleaned up
+// at exit.
+template<typename Type>
+struct LeakySingletonTraits : public DefaultSingletonTraits<Type> {
+  static const bool kRegisterAtExit = false;
+};
+
+
 // The Singleton<Type, Traits, DifferentiatingType> class manages a single
 // instance of Type which will be created on first use and will be destroyed at
 // normal process exit). The Trait::Delete function will not be called on