DEV: Use new core code API for topic view tracking (#173)

Brings this plugin into line with the changes at
https://github.com/discourse/discourse/pull/27533,
where we have split the topic view tracking into
2 controller functions.

.discourse-compatibility

@@ -1,3 +1,4 @@
+< 3.3.0.beta3-dev: 11dcab84669462b05eba3f1a59401727cafe8188
 < 3.3.0.beta1-dev: 94c7b7da216c66d773f800a714493f087affaac9
 3.1.999: a4b203274b88c5277d0b5b936de0bc0e0016726c
 2.8.0.beta9: 05678c451caf2ceb192501da91cf0d24ea44c8e8

app/controllers/docs/docs_controller.rb

@@ -54,9 +54,11 @@ module Docs
 
       ip = request.remote_ip
       user_id = (current_user.id if current_user)
-      track_visit = should_track_visit_to_topic?
 
-      TopicsController.defer_track_visit(topic.id, ip, user_id, track_visit)
+      # TODO (martin) Change this to `defer_track_visit` once the core
+      # method is renamed.
+      TopicsController.defer_track_visit_v2(topic.id, user_id) if should_track_visit_to_topic?
+      TopicsController.defer_topic_view(topic.id, ip, user_id)
 
       TopicViewSerializer.new(topic_view, scope: guardian, root: false)
     end