drop old backends

plugins/org.chromium.sdk.wipbackend.wk118685/src/org/chromium/sdk/internal/wip/WipCommandCallback.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.wip;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import org.chromium.sdk.internal.BaseCommandProcessor;
-import org.chromium.sdk.internal.wip.protocol.input.WipCommandResponse;
-
-/**
- * An explicit interface for a generic type {@link BaseCommandProcessor.Callback}.
- */
-public interface WipCommandCallback extends BaseCommandProcessor.Callback<WipCommandResponse> {
-
-  /**
-   * A default implementation of the callback that separates error responses from
-   * success responses.
-   */
-  abstract class Default implements WipCommandCallback {
-    protected abstract void onSuccess(WipCommandResponse.Success success);
-    protected abstract void onError(String message);
-
-    @Override
-    public void messageReceived(WipCommandResponse response) {
-      WipCommandResponse.Success asSuccess = response.asSuccess();
-      if (asSuccess != null) {
-        onSuccess(asSuccess);
-      } else {
-        String message;
-        WipCommandResponse.Error asError = response.asError();
-        if (asError == null) {
-          message = "Internal messaging error";
-        } else {
-          List<String> messageList = new ArrayList<String>(2);
-          messageList.add(asError.error().message());
-          List<String> data = asError.error().data();
-          if (data != null) {
-            messageList.addAll(data);
-          }
-          message = messageList.toString();
-        }
-        onError(message);
-      }
-    }
-
-    @Override
-    public void failure(String message) {
-      onError(message);
-    }
-  }
-}