drop old backends

plugins/org.chromium.sdk.wipbackend.wk120709/src/org/chromium/sdk/internal/websocket/WsConnection.java

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.sdk.internal.websocket;
-
-import java.io.IOException;
-
-import org.chromium.sdk.RelayOk;
-import org.chromium.sdk.SyncCallback;
-import org.chromium.sdk.util.SignalRelay;
-
-/**
- * Abstract interface to WebSocket implementation that hides a particular specification
- * version.
- */
-public interface WsConnection {
-
-  void startListening(Listener listener);
-
-  void sendTextualMessage(String message) throws IOException;
-
-  RelayOk runInDispatchThread(Runnable runnable, SyncCallback syncCallback);
-
-  SignalRelay<?> getCloser();
-
-  interface Listener {
-    void textMessageRecieved(String text);
-
-    /**
-     * Some non-fatal error happened.
-     */
-    void errorMessage(Exception ex);
-
-    /**
-     * Connection has been closed. Message is called from Dispatch thread.
-     */
-    void eofMessage();
-  }
-}