Remove Render.Workers.MaxWorkerCountInRendererProcess UMA.

content/browser/renderer_host/render_process_host_impl.h

Index: content/browser/renderer_host/render_process_host_impl.h
diff --git a/content/browser/renderer_host/render_process_host_impl.h b/content/browser/renderer_host/render_process_host_impl.h
index dfe8d2481c796de7ee6adfb3e236a0f6af0c3671..46e67e129f2db8a3079e3afd82182245168ff4cb 100644
--- a/content/browser/renderer_host/render_process_host_impl.h
+++ b/content/browser/renderer_host/render_process_host_impl.h
@@ -423,7 +423,11 @@ class CONTENT_EXPORT RenderProcessHostImpl
   scoped_refptr<ConnectionFilterController> connection_filter_controller_;
   service_manager::mojom::ServicePtr test_service_;
 
+  // The number of service workers running in this process.
   size_t service_worker_ref_count_;
+  // See comments for IncrementSharedWorkerRefCount() and
+  // DecrementSharedWorkerRefCount(). This is more like a boolean flag and not
+  // actually the number of shared workers running in this process.
   size_t shared_worker_ref_count_;
 
   // Set in ForceReleaseWorkerRefCounts. When true, worker ref counts must no
@@ -553,10 +557,6 @@ class CONTENT_EXPORT RenderProcessHostImpl
   // Records the time when the process starts surviving for workers for UMA.
   base::TimeTicks survive_for_worker_start_time_;
 
-  // Records the maximum # of workers simultaneously hosted in this process
-  // for UMA.
-  size_t max_worker_count_;
-
   // Context shared for each mojom::PermissionService instance created for this
   // RPH.
   std::unique_ptr<PermissionServiceContext> permission_service_context_;