TITANIC: Remove const prefix from passed messages

Turns out that some of the messages have properties that the objects
that handle them can set. For example, the CMouseDragStartMsg has a
_dragItem property that an item that allows dragging will explicitly
set, allowing the input handler to keep track of what was dragged.

2 files changed, 2 insertions, 2 deletions

diff --git a/engines/titanic/game/sgt/sgt_state_room.cpp b/engines/titanic/game/sgt/sgt_state_room.cpp
index a6dc523bcf..cf735dd6d0 100644
--- a/engines/titanic/game/sgt/sgt_state_room.cpp
+++ b/engines/titanic/game/sgt/sgt_state_room.cpp
@@ -90,7 +90,7 @@ void CSGTStateRoom::load(SimpleFile *file) {
 	CBackground::load(file);
 }
 
-bool CSGTStateRoom::handleEvent(const CEnterRoomMsg &msg) {
+bool CSGTStateRoom::handleEvent(CEnterRoomMsg &msg) {
 	warning("CSGTStateRoom::handleEvent");
 	return true;
 }
diff --git a/engines/titanic/game/sgt/sgt_state_room.h b/engines/titanic/game/sgt/sgt_state_room.h
index dbe4538ced..4ec1617875 100644
--- a/engines/titanic/game/sgt/sgt_state_room.h
+++ b/engines/titanic/game/sgt/sgt_state_room.h
@@ -55,7 +55,7 @@ private:
 	int _fieldEC;
 	int _fieldF0;
 protected:
-	virtual bool handleEvent(const CEnterRoomMsg &msg);
+	virtual bool handleEvent(CEnterRoomMsg &msg);
 public:
 	CLASSDEF
 	CSGTStateRoom();