// Starts the request using the specified frame. Calls |callback| when
// done.
virtual void Start(blink::WebFrame* frame,
- blink::WebURLRequest::TargetType target_type,
+ blink::WebURLRequest::RequestContext request_context,
+ blink::WebURLRequest::FrameType frame_type,
const Callback& callback) = 0;
// Sets how long to wait for the server to reply. By default, there is no