Decoupling more things, mostly to do with the PluginManager and logging which now requires an IServiceProvider so have created a simple instance of that.

src/Umbraco.Web/Install/Controllers/InstallApiController.cs

@@ -257,7 +257,7 @@ namespace Umbraco.Web.Install.Controllers
 
         internal InstallSetupResult ExecuteStep(InstallSetupStep step, JToken instruction)
         {
-            using (DisposableTimer.TraceDuration<InstallApiController>("Executing installation step: " + step.Name, "Step completed"))
+            using (ApplicationContext.ProfilingLogger.TraceDuration<InstallApiController>("Executing installation step: " + step.Name, "Step completed"))
             {
                 var model = instruction == null ? null : instruction.ToObject(step.StepType);
                 var genericStepType = typeof(InstallSetupStep<>);