BinEditor: Close removed files silently.

The file cannot be saved as creator just
holds a chunk of the file.

Task-number: QTCREATORBUG-13014
Change-Id: I53c79f4ca5102673e66c5bd3f901c373ec8e0d90
Reviewed-by: Christian Stenger <christian.stenger@digia.com>

src/plugins/bineditor/bineditorplugin.cpp

@@ -247,6 +247,12 @@ public:
         return true;
     }
 
+    ReloadBehavior reloadBehavior(ChangeTrigger state, ChangeType type) const
+    {
+        Q_UNUSED(state)
+        return type == TypeRemoved ? BehaviorSilent : BehaviorAsk;
+    }
+
     bool save(QString *errorString, const QString &fn, bool autoSave)
     {
         QTC_ASSERT(!autoSave, return true); // bineditor does not support autosave - it would be a bit expensive