* Added a Dano extension to BMessageQueue: IsNextMessage().

* BLooper::AddMessage() is now using this method to determine wether or not to
  update its looper thread.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19956 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/app/MessageQueue.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2001-2005, Haiku, Inc. All Rights Reserved.
+ * Copyright 2001-2007, Haiku, Inc. All Rights Reserved.
  * Distributed under the terms of the MIT License.
  */
 #ifndef	_MESSAGE_QUEUE_H
@@ -30,6 +30,7 @@ class BMessageQueue {
 		bool IsLocked() const;
 
 		BMessage *NextMessage();
+		bool IsNextMessage(const BMessage* message) const;
 
 	private:
 		// Reserved space in the vtable for future changes to BMessageQueue