// `this.contentWindow` or `this.browsingContext` will throw.
              // The `sendQuery` call in the parent will already have been
              // rejected when the actor was destroyed, so there's no need to
              // reject our promise or log an additional error.
              return;
            }

            let result = lazy.PageThumbUtils.shouldStoreContentThumbnail(
              this.contentWindow,
              this.browsingContext.docShell
            );
            resolve(result);
          })
        );
      }
      case "Browser:Thumbnail:GetOriginalURL": {
        /**
         * Remote GetOriginalURL request handler for PageThumbs.
         */
        let channel = this.browsingContext.docShell.currentDocumentChannel;
        let channelError = lazy.PageThumbUtils.isChannelErrorResponse(channel);
        let originalURL;
        try {
          originalURL = channel.originalURI.spec;
        } catch (ex) {}
        return { channelError, originalURL };
      }
    }
    return undefined;
  }
}
PK