Implements the browser side of query routing. The methods of this class may be called on any browser process thread unless otherwise indicated.

Callback associated with a single pending asynchronous query. Execute the Success or Failure method to send an asynchronous response to the associated JavaScript handler. It is a runtime error to destroy a Callback object associated with an uncanceled query without first executing one of the callback methods. The methods of this class may be called on any browser process thread.

Implement this interface to handle queries. All methods will be executed on the browser process UI thread.

Used to configure the query router. The same values must be passed to both CefMessageRouterBrowserSide and CefMessageRouterRendererSide. If using multiple router pairs make sure to choose values that do not conflict.

Implements the renderer side of query routing. The methods of this class must be called on the render process main thread.