[core] Make the BackgroundScheduler a singleton

- Do not carry it over everywhere as parameter, it is a shared
  instance anyway and the lifecycle is pretty much the app lifecycle
  from the moment we instantiate a map.
- Rename to BackgroundScheduler because it is a Scheduler that will
  do tasks in the background, we don't make assumptions if it is a
  thread pool or a single thread.
- Most importantly, remove the dependency from `core` on `platform`.

1 files changed, 0 insertions, 3 deletions

diff --git a/src/mbgl/map/map_impl.hpp b/src/mbgl/map/map_impl.hpp
index 32dc728b70..598b72907a 100644
--- a/src/mbgl/map/map_impl.hpp
+++ b/src/mbgl/map/map_impl.hpp
@@ -1,6 +1,5 @@
 #pragma once
 
-#include <mbgl/actor/scheduler.hpp>
 #include <mbgl/annotation/annotation_manager.hpp>
 #include <mbgl/map/map.hpp>
 #include <mbgl/map/map_observer.hpp>
@@ -30,7 +29,6 @@ public:
          RendererFrontend&,
          MapObserver&,
          FileSource&,
-         Scheduler&,
 
          Size size,
          float pixelRatio,
@@ -61,7 +59,6 @@ public:
     MapObserver& observer;
     RendererFrontend& rendererFrontend;
     FileSource& fileSource;
-    Scheduler& scheduler;
 
     Transform transform;