chatboxinput: Plugin should be able to use this

runelite-client/src/main/java/net/runelite/client/game/chatbox/ChatboxInput.java

@@ -27,13 +27,13 @@ package net.runelite.client.game.chatbox;
 /**
  * A modal input that lives in the chatbox panel.
  */
-abstract class ChatboxInput
+public abstract class ChatboxInput
 {
-	void open()
+	protected void open()
 	{
 	}
 
-	void close()
+	protected void close()
 	{
 	}
 }

runelite-client/src/main/java/net/runelite/client/game/chatbox/ChatboxTextInput.java

@@ -573,7 +573,7 @@ public class ChatboxTextInput extends ChatboxInput implements KeyListener, Mouse
 	}
 
 	@Override
-	void close()
+	protected void close()
 	{
 		if (this.onClose != null)
 		{