Add mailbox copy message interface.

mailnews/local/public/nsIMailboxService.h

@@ -67,6 +67,16 @@ public:
 	NS_IMETHOD ParseMailbox(const nsFileSpec& aMailboxPath, nsIStreamListener * aMailboxParser, 
 							nsIUrlListener * aUrlListener, nsIURL ** aURL) = 0;
 
+	/////////////////////////////////////////////////////////////////////////////////////////////
+	// Pass in the URI for the message you want to have copied. We can extract the message id
+	// and the mail folder from the URI. aMailboxCopy already knows about the destination folder.
+	// Set moveMessage to TRUE if you want the message to be moved. FALSE leaves it as just a copy.
+	/////////////////////////////////////////////////////////////////////////////////////////////
+
+	NS_IMETHOD CopyMessage(const char * aSrcMailboxURI, nsIStreamListener * aMailboxCopy, PRBool moveMessage,
+						   nsIUrlListener * aUrlListener, nsIURL **aURL) = 0;
+//	NS_IMETHOD CopyMessages(PRUnichar * aSrcMailboxURI[], PRBool moveMessage);
+
 	/////////////////////////////////////////////////////////////////////////////////////////////
 	// When you want a message from the mailbox displayed, pass in the path to the mailbox, 
 	// the starting and ending byte values in the mailbox for the message.