constructor(actionExecutor, content, errorCallback) {
    super(
        chrome.i18n.getMessage('promptDecryptVerifyTitle'), content,
        errorCallback);

    this.actionExecutor_ = actionExecutor;
  }
@param {!e2e.ext.actions.Executor} actionExecutor Executor for the
    End-to-End actions.
@param {!messages.BridgeMessageRequest} content The content that the user
    wants to decrypt.
@param {!function(Error)} errorCallback A callback where errors will be
    passed to.